Chapter 15 Airway Management and Ventilation

Question 1

The upper airway of an adult consists of all the structures above the: A) carina. B) bronchus. C) vocal cords. D) cricoid ring

Answer 1

vocal cords

Question 2

The ______________ is the lowest portion of the pharynx and opens into the larynx anteriorly and the esophagus posteriorly. A) oropharynx B) nasopharynx C) hyperpharynx D) laryngopharynx

Answer 2

laryngopharynx

Question 3

The nasal cavity: A) contains two bony shelves known as turbinates. B) is extremely delicate and has a rich blood supply. C) requires significant trauma to result in hemorrhage. D) is separated by a septum that is midline in all people

Answer 3

is extremely delicate and has a rich blood supply

Question 4

The ________ are formed by the cranial bones and prevent contaminants from entering the respiratory tract. A) sinuses B) turbinates C) bony nasal shelves D) nasal mucous membranes

Answer 4

sinuses

Question 5

The oropharynx: A) contains the adenoids on its posterior wall. B) forms the posterior portion of the oral cavity. C) is bordered superiorly by the hard palate only. D) consists of the anterior portion of the oral cavity.

Answer 5

forms the posterior portion of the oral cavity.

Question 6

From an airway management perspective, the MOST important anatomic consideration regarding an adult’s tongue is: A) that it is easily lacerated, but bleeds minimally. B) that it attaches directly to the mandible and hyoid bone. C) its proportionately large size compared to a child’s tongue. D) its tendency to fall back and occlude the posterior pharynx.

Answer 6

its tendency to fall back and occlude the posterior pharynx.

Question 7

The anterior portion of the palate is formed by the: A) hyoid bone and mandible. B) union of the facial bones. C) maxilla and palatine bones. D) soft tissues of the posterior pharynx.

Answer 7

maxilla and palatine bones.

Question 8

Which of the following statements regarding the tonsils is correct? A) The tonsils are located on the posterior nasopharyngeal wall. B) The tonsils rarely become swollen enough to obstruct the airway. C) The tonsils are comprised of lymphatic tissue and help to trap bacteria. D) The tonsils are located in the anterior pharynx and filter bacteria.

Answer 8

The tonsils are comprised of lymphatic tissue and help to trap bacteria.

Question 9

The __________ is an anatomic space located between the base of the tongue and the epiglottis. A) vallecula B) uvula C) adenoid D) larynx

Answer 9

vallecula

Question 10

Anatomically, the ________ is directly anterior to the glottic opening. A) thyroid gland B) vallecular space C) cricoid cartilage D) thyroid cartilage

Answer 10

thyroid cartilage

Question 11

Paramedics must use extreme caution when accessing the airway via the cricothyroid membrane because: A) the cricothyroid membrane is highly vascular and tends to bleed profusely when it is incised. B) the cricothyroid membrane is bordered laterally and inferiorly by the highly vascular thyroid gland. C) cricothyrotomy is associated with a high incidence of inadvertent laceration of a carotid artery. D) the thyroid cartilage is smaller than the cricoid cartilage and makes the cricothyroid membrane difficult to locate.

Answer 11

the cricothyroid membrane is bordered laterally and inferiorly by the highly vascular thyroid gland.

Question 12

During forceful inhalation, the vocal cords: A) are partially open to allow for turbulent air flow. B) open widely to provide minimum resistance to air flow. C) abruptly spasm in order to protect the lower airway. D) bulge anteriorly to facilitate air flow into the trachea.

Answer 12

open widely to provide minimum resistance to air flow

Question 13

The ____________ are pyramid-like structures that form the posterior attachment of the vocal cords. A) palatine tonsils B) pyriform fossae C) arytenoid cartilages D) hypoepiglottic ligaments

Answer 13

arytenoid cartilages

Question 14

Tenting of the skin under the jaw often occurs when airway devices are inadvertently inserted into the: A) pyriform fossae. B) vallecular space. C) laryngopharynx. D) hypopharyngeal space

Answer 14

pyriform fossae.

Question 15

Laryngospasm is defined as: A) aspiration of foreign material. B) spasmodic closure of the vocal cords. C) voluntary closure of the glottic opening. D) spontaneous collapsing of the trachea.

Answer 15

spasmodic closure of the vocal cords

Question 16

The function of the lower airway is to: A) warm, filter, and humidify air. B) protect the lungs from aspiration. C) deliver oxygenated blood to the cells. D) exchange oxygen and carbon dioxide

Answer 16

exchange oxygen and carbon dioxide.

Question 17

The trachea and mainstem bronchi: A) constrict violently when their beta-2 receptors are stimulated excessively. B) are approximately 10 to 12 cm in length and are joined together at the hilum. C) do not contain mucous-producing cells in patients without a respiratory disease. D) are lined with beta-2 receptors that result in bronchodilation when stimulated.

Answer 17

are lined with beta-2 receptors that result in bronchodilation when stimulated.

Question 18

In contrast to the right lung, the left lung: A) has two lobes. B) has three lobes. C) is encased in the parietal pleura. D) can only hold a small volume of air.

Answer 18

has two lobes.

Question 19

Surfactant is: A) produced by the mucous cells of the left and right mainstem bronchi. B) quickly destroyed in patients who have a severe upper airway obstruction. C) a phospholipid compound that decreases surface tension on the alveolar walls. D) a lubricating substance that increases alveolar surface tension during breathing.

Answer 19

a phospholipid compound that decreases surface tension on the alveolar walls

Question 20

Atelectasis occurs when: A) the alveoli are overinflated and rupture. B) a deficiency of surfactant causes alveolar collapse. C) deoxygenated blood diffuses across the alveoli. D) surface tension on the alveolar walls is decreased

Answer 20

a deficiency of surfactant causes alveolar collapse

Question 21

The volume of air that is moved into or out of the respiratory tract in one breath is called: A) tidal volume. B) alveolar volume. C) minute volume. D) inspiratory reserve volume

Answer 21

tidal volume

Question 22

Physiologic dead space increases with: A) tachypnea. B) deep breathing. C) alveolar inflation. D) pulmonary obstructions.

Answer 22

pulmonary obstructions

Question 23

Approximately ____ mL of air remains in the anatomic dead space of an adult with a tidal volume of 500 mL. A) 100 B) 125 C) 150 D) 175

Answer 23

150

Question 24

The normal alveolar volume in a healthy adult is: A) 250 mL. B) 300 mL. C) 350 mL. D) 400 mL.

Answer 24

350 mL

Question 25

What is the alveolar minute volume of a patient with a respiratory rate of 12 breaths/min, a tidal volume of 450 mL, and a dead space volume of 135 mL? A) 3,650 mL B) 3,780 mL C) 4,260 mL D) 5,400 mL

Answer 25

3,780 mL

Question 26

When a patient’s respirations are too rapid and too shallow: A) the majority of inhaled air lingers in areas of physiologic dead space. B) inhaled air may only reach the anatomic dead space before being exhaled. C) the increase in tidal volume will compensate for a rapid respiratory rate. D) minute volume increases because a larger amount of air reaches the lungs

Answer 26

inhaled air may only reach the anatomic dead space before being exhaled.

Question 27

Following an optimal inspiration, the amount of air that can be forced from the lungs in a single exhalation is called the: A) functional reserve capacity. B) expiratory reserve volume. C) residual expiratory volume. D) fraction of inspired oxygen

Answer 27

functional reserve capacity

Question 28

The fraction of inspired oxygen (FIO2) increases with: A) increased tidal volume. B) forceful inhalation. C) supplemental oxygen. D) an increase in respirations.

Answer 28

supplemental oxygen

Question 29

The process of moving air into and out of the lungs is called: A) respiration. B) inhalation. C) ventilation. D) exhalation.

Answer 29

ventilation.

Question 30

Changes in the rate and depth of breathing are regulated primarily by the: A) pH of venous blood. B) pH of the CSF. C) saturation of oxygen and hemoglobin. D) amount of oxygen in the blood plasma.

Answer 30

pH of the CSF.

Question 31

The involuntary control of breathing originates in the: A) diencephalon. B) hypothalamus. C) cerebral cortex. D) pons and medulla.

Answer 31

pons and medulla.

Question 32

The Hering-Breuer reflex is a protective mechanism that: A) terminates inhalation and prevents lung overexpansion. B) decreases pneumotaxic function during severe hypoxia. C) sends messages to the diaphragm via the phrenic nerves. D) allows the apneustic center to influence the respiratory rate.

Answer 32

terminates inhalation and prevents lung overexpansion

Question 33

The dorsal respiratory group is primarily responsible for: A) motor control of the inspiratory and expiratory muscles. B) decreasing the respiratory rate when the blood pH is above 7.45. C) terminating inspiration in order to prevent pulmonary overexpansion. D) initiating respiration based on information received from the chemoreceptors

Answer 33

initiating respiration based on information received from the chemoreceptors.

Question 34

Chemoreceptors located in the carotid bodies and aortic arch sense minute changes in the ______ and send signals to the respiratory centers via the _______________ nerves. A) PaO2, vagus and intercostal B) PaCO2, glossopharyngeal and vagus C) PaCO2, phrenic and glossopharyngeal D) PaO2, hypoglossal, vagus, and intercostal

Answer 34

PaCO2, glossopharyngeal and vagus

Question 35

Under normal conditions, the central chemoreceptors in the brain increase the rate and depth of breathing when the: A) PaO2 level falls quickly. B) pH of the CSF decreases. C) PaCO2 decreases slowly. D) pH of the CSF increases

Answer 35

pH of the CSF decreases

Question 36

The hypoxic drive stimulates breathing in patients with: A) chronically decreased PaO2 levels. B) emphysema or chronic bronchitis. C) chronically decreased PaCO2 levels. D) mild bronchospasm caused by asthma

Answer 36

chronically decreased PaO2 levels

Question 37

All of the following factors would increase a person’s respiratory rate, EXCEPT: A) narcotic analgesic use. B) increased metabolism. C) the use of amphetamines. D) a rise in body temperature.

Answer 37

narcotic analgesic use

Question 38

During sleep, the metabolic rate is ________ and the number of respirations _________. A) low, increases B) high, decreases C) low, decreases D) high, increases

Answer 38

low, decreases

Question 39

Negative-pressure ventilation occurs when: A) the diaphragm ascends and the intercostal muscles retract. B) air is drawn into the lungs when intrathoracic pressure decreases. C) pressure within the chest decreases and air is forced from the lungs. D) the phrenic nerves stop sending messages to the diaphragm

Answer 39

air is drawn into the lungs when intrathoracic pressure decreases.

Question 40

In contrast to negative-pressure ventilation, positive-pressure ventilation occurs when: A) the diaphragm contracts. B) air is drawn into the lungs. C) intrathoracic pressure falls. D) air is forced into the lungs.

Answer 40

air is forced into the lungs

Question 41

The exchange of oxygen and carbon dioxide between the alveoli and the blood in the pulmonary capillaries is called: A) internal respiration. B) external respiration. C) pulmonary ventilation. D) intrapulmonary shunting

Answer 41

external respiration

Question 42

Oxygen that is dissolved in the blood plasma: A) can be measured with a pulse oximeter. B) makes up the partial pressure of oxygen. C) is quickly absorbed by bicarbonate ions. D) cannot participate in pulmonary respiration

Answer 42

makes up the partial pressure of oxygen

Question 43

Which of the following statements regarding anemia is correct? A) Anemia results in a decreased ability of the blood to carry oxygen. B) Patients with anemia have a chronically low level of hemoglobin. C) Anemia is a condition caused exclusively by a deficiency of iron. D) Anemic patients typically present with flushed skin and bradycardia.

Answer 43

Anemia results in a decreased ability of the blood to carry oxygen

Question 44

A patient with respiratory splinting: A) is often tachypneic with deep breathing. B) is holding his or her arm against the chest. C) is breathing shallowly to alleviate chest pain. D) has an increased tidal volume due to a chest injury.

Answer 44

is breathing shallowly to alleviate chest pain.

Question 45

Intrapulmonary shunting is defined as: A) the return of unoxygenated blood to the left side of the heart. B) a decrease in the surface area of the alveoli caused by damage. C) a condition in which too much carbon dioxide is eliminated. D) failure of blood to bypass an obstruction in a pulmonary artery.

Answer 45

) the return of unoxygenated blood to the left side of the heart

Question 46

All of the following conditions will cause an increase in the circulating levels of carbon dioxide in the blood, EXCEPT: A) lactic acidosis. B) increased metabolism. C) anaerobic metabolism. D) acute hyperventilation

Answer 46

acute hyperventilation.

Question 47

Hypoventilation causes a(n) __________ and leads to __________. A) increased minute volume, hypocarbia B) decreased minute volume, hypocarbia C) increased minute volume, hypercarbia D) decreased minute volume, hypercarbia

Answer 47

decreased minute volume, hypercarbia

Question 48

Normally, an adult at rest should have respirations that: A) are 20 to 24 breaths/min with adequate chest rise. B) follow a regular pattern of inhalation and exhalation. C) have a slightly reduced tidal volume and normal rate. D) are adequate to sustain a heart rate of 80 beats/min

Answer 48

follow a regular pattern of inhalation and exhalation

Question 49

An adult patient with an abnormal respiratory rate should: A) be given oxygen at 4 L/min with a nasal cannula. B) be assessed immediately for heart rate abnormalities. C) be evaluated for other signs of inadequate ventilation. D) receive ventilatory assistance with a bag-mask device.

Answer 49

be evaluated for other signs of inadequate ventilation.

Question 50

The condition in which the body’s tissues and cells do not receive enough oxygen is called: A) anoxia. B) hypoxia C) asphyxia. D) hypoxemia

Answer 50

hypoxia

Question 51

Which of the following represents the correct sequence for managing a patient’s airway? A) Open, clear, assess, intervene B) Clear, open, assess, intervene C) Assess, clear, open, intervene D) Open, assess, clear, intervene

Answer 51

Open, clear, assess, intervene

Question 52

A patient with orthopnea: A) has blood-tinged sputum. B) awakens at night with dyspnea. C) has dyspnea while lying flat. D) is breathing through pursed lips.

Answer 52

has dyspnea while lying flat.

Question 53

Asymmetric chest wall movement is characterized by: A) chest rise that is minimally visible. B) one side of the chest moving less than the other. C) alternating movement of the chest and abdomen. D) a part of the chest wall that bulges during exhalation.

Answer 53

one side of the chest moving less than the other

Question 54

When ventilating a patient with a bag-mask device, you note increased compliance. This means that: A) you are meeting resistance when ventilating. B) air can be forced into the lungs with relative ease. C) a lower airway obstruction should be suspected. D) the patient likely has an upper airway obstruction.

Answer 54

air can be forced into the lungs with relative ease

Question 55

In which of the following conditions would you be LEAST likely to encounter pulsus paradoxus? A) Moderate asthma attack B) Pericardial tamponade C) Tension pneumothorax D) Decompensating COPD

Answer 55

Moderate asthma attack

Question 56

Which of the following clinical findings would be of LEAST significance in a patient experiencing respiratory distress? A) Fever of 102.5°F B) Productive cough C) Chest pain or pressure D) BP of 148/94 mm Hg

Answer 56

BP of 148/94 mm Hg

Question 57

Which of the following findings is MOST significant in a patient with acute respiratory distress? A) A regular heart rate of 110 beats/min B) A family history of pulmonary embolism C) Prior ICU admission for the same problem D) Low-grade fever and flu-like symptoms

Answer 57

Prior ICU admission for the same problem

Question 58

A patient with a suppressed cough mechanism: A) should be intubated at once. B) is at serious risk for aspiration. C) often requires ventilation support. D) will have a positive eyelash reflex

Answer 58

is at serious risk for aspiration.

Question 59

Biot respirations are characterized by: A) slow, shallow irregular respirations or occasional gasping breaths. B) an irregular pattern of breathing with intermittent periods of apnea. C) deep, gasping respirations that are often rapid but may be slow. D) increased respirations followed by apneic periods.

Answer 59

an irregular pattern of breathing with intermittent periods of apnea

Question 60

Which of the following abnormal respiratory patterns generally do NOT suggest brain injury or cerebral anoxia? A) Biot respirations B) Agonal respirations C) Kussmaul respirations D) Cheyne-Stokes respirations

Answer 60

Kussmaul respirations

Question 61

Pulse oximetry is used to measure the: A) percentage of hemoglobin that is saturated with oxygen. B) exchange of oxygen and carbon dioxide at the cellular level. C) percentage of carbon dioxide that is eliminated from the body. D) amount of oxygen dissolved in the plasma portion of the blood

Answer 61

percentage of hemoglobin that is saturated with oxygen

Question 62

The pulse oximeter would be LEAST useful when: A) identifying deterioration of the cardiac patient. B) assessing vascular status in orthopaedic trauma. C) monitoring oxygenation status during intubation. D) determining if a patient should receive oxygen.

Answer 62

determining if a patient should receive oxygen

Question 63

Which of the following factors would MOST likely produce a falsely normal pulse oximetry reading? A) Carboxyhemoglobin B) Peripheral vasodilation C) A dimly lit environment D) Heart rate above 120 beats/min

Answer 63

Carboxyhemoglobin

Question 64

An increasing peak expiratory flow reading in a patient with respiratory distress suggests that the patient is: A) experiencing worsened hypoxemia. B) no longer experiencing bronchospasm. C) responding to bronchodilator therapy. D) in need of further bronchodilator therapy

Answer 64

responding to bronchodilator therapy.

Question 65

The average peak expiratory flow rate in a healthy adult is approximately: A) 450 mL. B) 550 mL. C) 650 mL. D) 750 mL

Answer 65

550 mL.

Question 66

When obtaining a peak expiratory flow rate for a patient with acute bronchospasm, you should: A) ask the patient to fully exhale before blowing into the mouthpiece. B) perform the test three times and take the best rate of the three readings. C) administer one bronchodilator treatment before obtaining the first reading. D) ensure that the patient is in a supine position to obtain an accurate reading

Answer 66

perform the test three times and take the best rate of the three readings

Question 67

It would NOT be appropriate to place a patient in the recovery position if he or she: A) is tachycardic. B) is semiconscious. C) has not been injured. D) is breathing shallowly

Answer 67

is breathing shallowly

Question 68

If you suspect that an unconscious patient has experienced a spinal injury, you should open his or her airway by: A) applying firm pressure to the patient’s forehead and tilting the head back. B) placing your fingers behind the angle of the jaw and lifting the jaw forward. C) carefully grasping the tongue and jaw and slowly lifting the jaw forward. D) lifting up on the jaw while placing the head in a slightly extended position.

Answer 68

placing your fingers behind the angle of the jaw and lifting the jaw forward.

Question 69

If several attempts to open a patient’s airway with the jaw-thrust maneuver are unsuccessful, you should: A) carefully tilt the patient’s head back while lifting up on the chin. B) maintain the patient’s head in a neutral position and intubate at once. C) insert an oropharyngeal airway and reattempt the jaw-thrust maneuver. D) suction the mouth for 15 seconds and then reattempt to open the airway

Answer 69

carefully tilt the patient’s head back while lifting up on the chin.

Question 70

A foreign-body airway obstruction should be suspected in a child who presents with: A) diffuse wheezing and nasal flaring. B) a productive cough and flushed skin. C) acute respiratory distress without fever. D) progressive respiratory distress and hoarseness

Answer 70

acute respiratory distress without fever

Question 71

An airway obstruction secondary to a severe allergic reaction: A) requires specific and aggressive treatment. B) often responds well to humidified oxygen. C) is usually the result of pulmonary aspiration. D) is treated effectively with abdominal thrusts.

Answer 71

requires specific and aggressive treatment.

Question 72

Which of the following conditions would MOST likely cause laryngeal spasm and edema? A) Croup B) Inhalation injury C) Viral pharyngitis D) Mild asthma attack

Answer 72

Inhalation injury

Question 73

Complications of aspiration include all of the following, EXCEPT: A) airway obstruction. B) intrapulmonary infection. C) bronchiolar tissue damage. D) excess surfactant production

Answer 73

excess surfactant production

Question 74

Poor lung compliance during your initial attempt to ventilate an unconscious, apneic adult should be treated by: A) sweeping the patient’s mouth with your fingers. B) reopening the airway and reattempting to ventilate. C) performing 30 chest compressions and reassessing. D) administering 15 subdiaphragmatic thrusts at once

Answer 74

reopening the airway and reattempting to ventilate

Question 75

If chest compressions and repositioning of the airway are unsuccessful in removing a severe airway obstruction in an unconscious patient, you should: A) perform a blind finger sweep of the mouth. B) alternate chest compressions and abdominal thrusts. C) perform laryngoscopy and use Magill forceps. D) gain airway access via the cricothyroid membrane

Answer 75

perform laryngoscopy and use Magill forceps

Question 76

A whistle-tip suction catheter is MOST often used to: A) suction large debris from the oropharynx. B) rapidly remove large volumes of vomitus. C) remove secretions from an ET tube. D) suction an adult’s mouth for 15 to 30 seconds

Answer 76

remove secretions from an ET tube.

Question 77

Placing a suction catheter past the base of the tongue: A) may cause the patient to gag or vomit. B) will result in aspiration of gastric contents. C) is effective in thoroughly clearing the airway. D) commonly causes bradycardia in adult patients

Answer 77

may cause the patient to gag or vomit

Question 78

An artificial airway adjunct: A) effectively protects the airway from aspiration. B) is a suitable substitute for manual head positioning. C) should be inserted in any patient who is semiconscious. D) does not obviate the need for proper head positioning

Answer 78

does not obviate the need for proper head positioning.

Question 79

If an unresponsive patient does not have a gag reflex, an oropharyngeal airway: A) should only be inserted if the patient is not breathing. B) should be inserted whether the patient is breathing or not. C) will effectively prevent aspiration if the patient vomits. D) must be inserted by depressing the tongue with a tongue blade.

Answer 79

should be inserted whether the patient is breathing or not

Question 80

The MOST significant complication associated with the use of an oropharyngeal airway is: A) soft-tissue trauma with oral bleeding. B) mild bradycardia in pediatric patients. C) significant bruising of the hard palate. D) a tachycardic response in adult patients.

Answer 80

soft-tissue trauma with oral bleeding

Question 81

Inserting a nasopharyngeal airway in a patient with CSF drainage from the nose following head trauma may: A) result in ventricular dysrhythmias secondary to intracranial pressure. B) cause acute herniation of the brainstem through the foramen magnum. C) cause the device to enter the brain through a hole caused by a fracture. D) result in acute hypertension and decreased cerebral perfusion pressure

Answer 81

cause the device to enter the brain through a hole caused by a fracture

Question 82

It would be appropriate to insert a nasopharyngeal airway in patients who: A) are unresponsive with multiple facial bone fractures. B) have an altered mental status with an intact gag reflex. C) are semiconscious with active vomiting and cyanosis. D) have CSF leakage from the nose and are semiconscious

Answer 82

have an altered mental status with an intact gag reflex.

Question 83

Supplemental oxygen given to a patient with an acute myocardial infarction: A) will prevent the patient from developing a lethal cardiac dysrhythmia. B) should not exceed 3 L/min in order to prevent oxidative injury. C) oxygenates the myocardium that is distal to the occluded coronary artery. D) enhances the body’s compensatory mechanisms during the cardiac event

Answer 83

enhances the body’s compensatory mechanisms during the cardiac event.

Question 84

A full (2,000 psi) D cylinder will last approximately ______ minutes if you are administering oxygen at 12 L/min.

Answer 84

24

Question 85

A Bourdon-gauge oxygen flowmeter: A) reduces the high pressure in the oxygen cylinder to a safe pressure. B) allows you to administer oxygen to a patient under high pressures. C) is used for transferring oxygen from a larger tank to a smaller tank. D) must be placed in an upright position because it is affected by gravity

Answer 85

reduces the high pressure in the oxygen cylinder to a safe pressure.

Question 86

Which of the following statements regarding oxygen is correct? A) Oxygen is a highly flammable gas. B) Grease prevents oxygen from exploding. C) Oxygen supports the process of combustion. D) Oxygen must be stored in a warm environment.

Answer 86

Oxygen supports the process of combustion

Question 87

When administering oxygen via a nonrebreathing mask, you must ensure that the: A) reservoir is half-filled first. B) one-way valves are disabled. C) patient has adequate tidal volume. D) flow rate is set to at least 6 L/min.

Answer 87

patient has adequate tidal volume

Question 88

The nasal cannula is of MOST benefit to patients: A) who require high oxygen concentrations. B) with mild hypoxemia and claustrophobia. C) with an acute exacerbation of emphysema. D) who are hypoxic and are mouth-breathers.

Answer 88

with mild hypoxemia and claustrophobia

Question 89

The Venturi mask is MOST useful in the prehospital setting when: A) a patient requires less than 15% oxygen. B) high-flow oxygen is required for severe hypoxia. C) patients cannot tolerate a nonrebreathing mask. D) a COPD patient requires a long-range transport.

Answer 89

a COPD patient requires a long-range transport.

Question 90

Oxygen that is entirely devoid of moisture: A) is less combustible than humidified oxygen. B) will dry the patient’s mucous membranes quickly. C) is optimum for patients requiring long-term oxygen. D) should be given in conjunction with bronchodilators

Answer 90

will dry the patient’s mucous membranes quickly

Question 91

In contrast to negative-pressure ventilation, positive-pressure ventilation: A) may impair blood return to the heart. B) moves air into the esophagus and trachea. C) causes decreased intrathoracic pressure. D) is the act of normal, unassisted breathing.

Answer 91

may impair blood return to the heart

Question 92

Compared to mouth-to-mouth ventilation, mouth-to-mask ventilation is more advantageous in that it: A) can be used in conjunction with supplemental oxygen. B) carries a lower risk of gastric distention and vomiting. C) is less likely to result in hyperventilation of the rescuer. D) allows greater tidal volume to be delivered to the patient

Answer 92

can be used in conjunction with supplemental oxygen

Question 93

. When ventilating an apneic adult with a pulse with a bag-mask device, you should: A) deliver 8 to 10 breaths/min and make the chest wall rise visibly. B) make the chest rise visibly and deliver one breath every 8 seconds. C) deliver each breath over 1 second at a rate of 10 to 12 breaths/min. D) squeeze the bag once every 3 seconds until the chest expands widely.

Answer 93

deliver each breath over 1 second at a rate of 10 to 12 breaths/min.

Question 94

Hyperventilating an apneic patient: A) is appropriate if the patient is an adult. B) may decrease venous return to the heart. C) is beneficial if the pulse rate is too slow. D) reduces the incidence of gastric distention

Answer 94

may decrease venous return to the heart.

Question 95

Complications associated with the one-person bag-mask ventilation technique are MOST often related to: A) hyperinflation of the lungs. B) unrecognized rescuer fatigue. C) improper manual head positioning. D) inadequate tidal volume delivery

Answer 95

inadequate tidal volume delivery

Question 96

When two paramedics are ventilating an apneic patient with a bag-mask device, the paramedic not squeezing the bag should: A) apply posterior cricoid pressure. B) manually position the patient’s head. C) continually auscultate breath sounds. D) maintain an adequate mask-to-face seal.

Answer 96

maintain an adequate mask-to-face seal

Question 97

An 8-year-old child in cardiac arrest has been intubated. When ventilating the child, the paramedic should: A) observe for full chest expansion. B) deliver 8 to 10 breaths per minute. C) allow partial exhalation between breaths. D) deliver one breath every 15 seconds.

Answer 97

deliver 8 to 10 breaths per minute

Question 98

The flow-restricted, oxygen-powered ventilation device: A) has a demand valve that is triggered by the negative pressure generated during inhalation. B) is the preferred initial device for ventilating an apneic or inadequately breathing patient. C) delivers 100% oxygen to apneic patients at a fixed flow rate of 50 to 60 L/min. D) should be used in patients with thoracic trauma because it is less likely to cause barotrauma

Answer 98

has a demand valve that is triggered by the negative pressure generated during inhalation

Question 99

Which of the following is an indicator of inadequate artificial ventilation when ventilating an apneic, tachycardic adult with a bag-mask device? A) The patient’s heart rate slows down. B) One breath is given every 10 to 12 seconds. C) About 12 to 20 breaths/min are being delivered. D) Each ventilation is delivered over 1 second.

Answer 99

About 12 to 20 breaths/min are being delivered

Question 100

Which of the following statements regarding the automatic transport ventilator (ATV) is correct? A) The ATV should not be used to ventilate a patient who is intubated and in cardiac arrest. B) Inadvertent variations in the rate and duration of ventilations often occur when the ATV is used. C) The paramedic can control an apneic patient’s minute volume with accuracy when using an ATV. D) Most ATVs are large and cumbersome and are therefore impractical to use in the prehospital setting.

Answer 100

The paramedic can control an apneic patient’s minute volume with accuracy when using an ATV.

Question 101

The pressure relief valve on an automatic transport ventilator may lead to unrecognized hypoventilation in patients with all of the following conditions, EXCEPT: A) airway obstruction. B) prolonged apnea. C) poor lung compliance. D) increased airway resistance

Answer 101

prolonged apnea

Question 102

A length-based resuscitation tape measure can be used to determine the most appropriate size of bag-mask device for pediatric patients who weigh up to: A) 34 kg. B) 38 kg. C) 42 kg. D) 46 kg.

Answer 102

34 kg

Question 103

Physiologic effects of CPAP include: A) increased intrathoracic pressure. B) forcing of fluid into the alveoli. C) increased alveolar surface tension. D) opening of collapsed alveoli

Answer 103

opening of collapsed alveoli.

Question 104

Indications for CPAP include: A) cardiopulmonary arrest. B) acute pulmonary edema. C) severe opiate toxicity. D) acute bacterial pneumonia

Answer 104

acute pulmonary edema

Question 105

CPAP is NOT appropriate for patients with: A) acute or chronic bronchospasm. B) slow, shallow respiratory effort. C) an oxygen saturation less than 90%. D) evidence of congestive heart failure.

Answer 105

slow, shallow respiratory effort

Question 106

Which of the following patients may benefit from CPAP? A) Alert patient with respiratory distress following submersion in water B) Comatose patient with shallow breathing after overdosing on heroin C) Trauma patient with labored breathing and extensive chest wall bruising D) Patient with pulmonary edema who is unable to follow verbal commands

Answer 106

Alert patient with respiratory distress following submersion in water

Question 107

When administering CPAP therapy to a patient, it is important to remember that: A) acute symptomatic bradycardia has been directly linked to CPAP therapy. B) SpO2 of 100% must be achieved as quickly as possible. C) the increased intrathoracic pressure caused by CPAP can result in hypotension. D) the head straps must be secured immediately in order to achieve an adequate seal

Answer 107

the increased intrathoracic pressure caused by CPAP can result in hypotension

Question 108

Signs of clinical improvement during CPAP therapy include: A) a decrease in systolic BP. B) an increase in the heart rate. C) increased ETCO2. D) increased ease of speaking

Answer 108

increased ease of speaking

Question 109

A gastric tube is MOST useful for: A) performing prehospital gastric lavage in patients with a toxic ingestion. B) blocking off the esophagus so that an ET tube can be placed. C) decompressing the stomach and decreasing pressure on the diaphragm. D) removing blood from the esophagus in patients with esophageal varices.

Answer 109

decompressing the stomach and decreasing pressure on the diaphragm

Question 110

Which of the following is NOT proper procedure when inserting a nasogastric tube in a responsive patient? A) Administering a topical alpha agonist to constrict the nasal vasculature B) Keeping the patient’s head in an extended position while inserting the tube C) Injecting 40 mL of air into the tube while auscultating over the epigastrium D) Encouraging the patient to swallow or drink to facilitate passage of the tube

Answer 110

Keeping the patient’s head in an extended position while inserting the tube

Question 111

In contrast to the nasogastric tube, the orogastric tube: A) is safer to use in patients with severe facial trauma. B) should only be used in patients who are conscious. C) can be used in patients who require gastric lavage. D) is not necessary in patients who have been intubated

Answer 111

is safer to use in patients with severe facial trauma

Question 112

When determining the correct-sized nasogastric tube for a patient, you should measure the tube: A) from the nose to the ear and to the xiphoid process. B) from the nose to the chin and to the epigastric region. C) from the mouth to the chin and to the xiphoid process. D) from the nose, around the ear, and to the xiphoid process.

Answer 112

from the nose to the ear and to the xiphoid process

Question 113

Endotracheal intubation is MOST accurately defined as: A) inserting an ET tube through the vocal cords via the patient’s mouth. B) passing an ET tube through an opening in the cricothyroid membrane. C) inserting an ET tube through the glottic opening via the patient’s nose. D) passing an ET tube through the glottic opening and sealing off the trachea

Answer 113

passing an ET tube through the glottic opening and sealing off the trachea.

Question 114

All of the following are complications associated with orotracheal intubation, EXCEPT: A) laryngeal swelling. B) damage to the vocal cords. C) necrosis of the nasal mucosa. D) barotrauma from forceful ventilation

Answer 114

necrosis of the nasal mucosa

Question 115

The major advantage of ET intubation is that it: A) facilitates tracheal suctioning. B) protects the airway from aspiration. C) is an easy skill to learn and perform. D) provides a route for certain medications.

Answer 115

protects the airway from aspiration

Question 116

A disadvantage of ET intubation is that it: A) is associated with a high incidence of vocal cord damage and bleeding into the oropharynx. B) bypasses the upper airway’s physiologic functions of warming, filtering, and humidifying. C) does not eliminate the incidence of gastric distention and can result in pulmonary aspiration. D) is only a temporary method of securing the patient’s airway until a more definitive device can be inserted.

Answer 116

bypasses the upper airway’s physiologic functions of warming, filtering, and humidifying

Question 117

Murphy’s eye, an opening on the distal side of an ET tube, allows ventilation to occur: A) whether the tube is in the trachea or in the esophagus. B) even if the tip of the tube is occluded by blood or mucus. C) if the tube is inserted into the right mainstem bronchus. D) even if the ET tube does not enter the patient’s trachea fully

Answer 117

even if the tip of the tube is occluded by blood or mucus.

Question 118

An ET tube that is too large for a patient: A) is much more likely to enter the esophagus. B) will lead to an increased resistance to airflow. C) will make ventilating the patient more difficult. D) can be difficult to insert and may cause trauma

Answer 118

can be difficult to insert and may cause trauma

Question 119

Normally, an adult male will require an ET tube that ranges from: A) 6.5 to 7.0 mm. B) 7.0 to 7.5 mm. C) 7.5 to 8.5 mm. D) 8.5 to 9.0 mm.

Answer 119

7.5 to 8.5 mm

Question 120

Regardless of the internal diameter, all ET tubes have: A) a 15/22-mm proximal adaptor. B) an inflatable cuff at the distal tip. C) a pilot balloon on the proximal end. D) black millimeter markings on the side.

Answer 120

a 15/22-mm proximal adaptor

Question 121

The procedure in which the vocal cords are visualized for placement of an ET tube is called direct: A) bronchoscopy. B) tracheostomy. C) pharyngoscopy. D) laryngoscopy.

Answer 121

laryngoscopy.

Question 122

In contrast to a curved laryngoscope blade, a straight laryngoscope blade is designed to: A) move the patient’s tongue to the left. B) extend beneath the epiglottis and lift it up. C) fit into the vallecular space at the base of the tongue. D) indirectly lift the epiglottis to expose the vocal cords.

Answer 122

extend beneath the epiglottis and lift it up.

Question 123

When inserting a stylet into an ET tube, you must ensure that: A) the stylet rests at least ½ in back from the end of the tube. B) you use a petroleum-based gel to facilitate easy removal. C) the stylet is rigid and does not allow the ET tube to bend. D) the tube is bent in the form of a U to facilitate placement

Answer 123

the stylet rests at least ½ in back from the end of the tube.

Question 124

Which of the following statements regarding orotracheal intubation is correct? A) Orotracheal intubation should be performed on any patient who is apneic. B) Orotracheal intubation is the most common method of performing ET intubation. C) You cannot perform orotracheal intubation on patients who are breathing. D) Orotracheal intubation is most commonly performed without a laryngoscope.

Answer 124

Orotracheal intubation is the most common method of performing ET intubation

Question 125

Before performing orotracheal intubation, it is MOST important for the paramedic to: A) monitor the patient’s cardiac rhythm. B) preoxygenate with a bag-mask device. C) wear gloves and facial protection. D) apply a pulse oximeter to the patient.

Answer 125

wear gloves and facial protection

Question 126

Most of the complications caused by intubation-induced hypoxia: A) are easily reversible. B) are subtle and occur gradually. C) can be predicted with pulse oximetry. D) are dramatic and occur immediately.

Answer 126

are subtle and occur gradually

Question 127

Orotracheal intubation should be performed with the patient’s head: A) slightly flexed. B) hyperextended. C) in a neutral position. D) in the sniffing position.

Answer 127

in the sniffing position.

Question 128

Intubation of the trauma patient is MOST effectively performed: A) with a curved blade. B) by two paramedics. C) with a cervical collar in place. D) with the patient’s head elevated.

Answer 128

by two paramedics.

Question 129

After properly positioning the patient’s head for intubation, you should open his or her mouth and insert the blade: A) into the right side of the mouth and sweep the tongue to the left. B) in the midline of the mouth and gently lift upward on the tongue. C) into the left side of the mouth and move the blade to the midline. D) in the midline of the mouth and gently sweep the tongue to the left.

Answer 129

into the right side of the mouth and sweep the tongue to the left.

Question 130

After correctly positioning the laryngoscope blade in the patient’s mouth, you should: A) ask your partner to apply firm posterior pressure to the cricoid cartilage. B) gently pry back on the laryngoscope to obtain a view of the vocal cords. C) exert gentle traction at a 45° angle to the floor as you lift the patient’s jaw. D) pull slightly back on the laryngoscope blade in order to view the epiglottis.

Answer 130

exert gentle traction at a 45° angle to the floor as you lift the patient’s jaw

Question 131

You will know that you have achieved the proper laryngoscopic view of the vocal cords when you see: A) two white fibrous bands that lie vertically within the glottic opening. B) the tip of the straight blade touching the posterior wall of the pharynx. C) the thyroid cartilage bulge anteriorly as you lift up on the laryngoscope. D) the epiglottis lift when the tip of the curved blade is resting underneath it.

Answer 131

two white fibrous bands that lie vertically within the glottic opening

Question 132

The BURP maneuver usually involves applying backward, upward, and rightward pressure to the: A) upper third of the cricoid cartilage. B) lower third of the cricoid cartilage. C) upper third of the thyroid cartilage. D) lower third of the thyroid cartilage.

Answer 132

lower third of the thyroid cartilage

Question 133

The BEST way to be certain that the ET tube has passed through the vocal cords is to: A) feel the ridges of the tracheal wall with the ET tube. B) visualize the tube passing between the vocal cords. C) note the appropriate color change of the capnographer. D) ensure the presence of bilaterally equal breath sounds.

Answer 133

visualize the tube passing between the vocal cords

Question 134

You should insert the ET tube between the vocal cords until the: A) centimeter marking reads 15 cm at the patient’s teeth. B) distal end of the cuff is 1 to 2 cm past the vocal cords. C) proximal end of the cuff is 1 to 2 cm past the vocal cords. D) tube meets resistance as it makes contact with the carina.

Answer 134

proximal end of the cuff is 1 to 2 cm past the vocal cords

Question 135

When using a straight blade, a major mistake of new paramedics is to: A) try to pass the ET tube down the barrel of the blade. B) insert the blade directly between the vocal cords. C) use traction while lifting up on the patient’s mandible. D) insert the blade into the left side of the patient’s mouth.

Answer 135

try to pass the ET tube down the barrel of the blade

Question 136

After inserting the ET tube between the vocal cords, you should remove the stylet from the tube and then: A) attach the bag-mask device and ventilate. B) secure the tube with a commercial device. C) attach an ETCO2 detector to the tube. D) inflate the distal cuff with 5 to 10 mL of air.

Answer 136

inflate the distal cuff with 5 to 10 mL of air.

Question 137

If the ET tube has been positioned properly in the trachea: A) breath sounds should be somewhat louder on the right side and the epigastrium should be silent. B) you should not see vapor mist in the ET tube during exhalation when ventilating with a bag-mask. C) breath sounds should be loud at the apices of the lungs but somewhat diminished at the bases. D) the bag-mask device should be easy to compress and you should see corresponding chest expansion.

Answer 137

the bag-mask device should be easy to compress and you should see corresponding chest expansion

Question 138

Decreased ventilation compliance following intubation is LEAST suggestive of: A) gastric distention. B) left bronchus intubation. C) esophageal intubation. D) tension pneumothorax

Answer 138

left bronchus intubation

Question 139

Capnography is a reliable method for confirming proper ET tube placement because: A) carbon dioxide is not present in the esophagus. B) it is a reliable indicator of the patient’s PaO2 level. C) capnographers measure the amount of exhaled oxygen. D) capnographers measure the amount of carbon dioxide in inhaled air.

Answer 139

carbon dioxide is not present in the esophagus

Question 140

If the ET tube is placed in the trachea properly, the colorimetric paper inside the ETCO2 detector should: A) not change colors. B) turn yellow during inhalation. C) turn yellow during exhalation. D) remain purple during ventilations

Answer 140

turn yellow during exhalation

Question 141

The use of capnography in patients with prolonged cardiac arrest may be limited because: A) of an excess buildup of nitrogen in the blood. B) the paramedic often ventilates the patient too slowly. C) of acidosis and minimal carbon dioxide elimination. D) metabolic alkalosis damages the colorimetric paper.

Answer 141

of acidosis and minimal carbon dioxide elimination.

Question 142

Typically, ETCO2 is approximately: A) 2 to 5 mm Hg higher than the arterial PaCO2. B) 2 to 5 mm Hg lower than the arterial PaCO2. C) 5 to 10 mm Hg higher than the arterial PaCO2. D) 5 to 10 mm Hg lower than the arterial PaCO2

Answer 142

2 to 5 mm Hg lower than the arterial PaCO2

Question 143

What point(s) on the capnographic waveform represent(s) a mixture of alveolar gas and dead space gas? A) A-B B) B C) B-C D) D

Answer 143

B

Question 144

What phase of the capnographic waveform is called the expiratory upslope? A) A-B B) B-C C) C-D D) D-E

Answer 144

B-C

Question 145

On a capnographic waveform, point ___ is the maximal ETCO2 and is the best reflection of the alveolar CO2 level. A) B B) C C) D D) E

Answer 145

D

Question 146

According to the most current guidelines for emergency cardiac care, the MOST reliable method for monitoring correct ET tube placement is: A) pulse oximetry. B) the esophageal detector device. C) waveform capnography. D) colorimetric capnography

Answer 146

waveform capnography

Question 147

Following ET intubation, the ideal time to attach the capnography T-piece is: A) when the bag is attached to the ET tube. B) after 6 to 8 positive pressure breaths. C) immediately after removing the stylet. D) after auscultating the lungs and epigastrium.

Answer 147

when the bag is attached to the ET tube

Question 148

Capnography can serve as an indicator of: A) proper ventilatory depth. B) cerebral perfusion pressure. C) coronary perfusion pressure. D) chest compression effectiveness.

Answer 148

chest compression effectiveness

Question 149

If using a bulb-style esophageal detector device to assist you in confirming proper ET tube placement, you should expect the bulb to: A) inflate slowly when you let go of it. B) refill briskly if the tube is in the trachea. C) stay collapsed if the tube is in the trachea. D) expand quickly if the tube is in the esophagus.

Answer 149

refill briskly if the tube is in the trachea

Question 150

The average depth of ET tube insertion for adult patients is: A) 21 to 25 cm. B) 22 to 26 cm. C) 23 to 27 cm. D) 24 to 28 cm.

Answer 150

21 to 25 cm.

Question 151

Before securing the ET tube in place with a commercial device, you should: A) remove the bag-mask device from the ET tube. B) hyperventilate the patient for 30 seconds to 1 minute. C) move the ET tube to the center of the patient’s mouth. D) note the centimeter marking on the ET tube at the patient’s teeth.

Answer 151

note the centimeter marking on the ET tube at the patient’s teeth

Question 152

Compared to orotracheal intubation, nasotracheal intubation is less likely to result in hypoxia because: A) it must be performed on spontaneously breathing patients. B) the procedure should be performed in less than 10 seconds. C) it does not involve direct visualization of the vocal cords. D) patients requiring nasotracheal intubation are usually stable

Answer 152

it must be performed on spontaneously breathing patients

Question 153

Which of the following is NOT a contraindication for nasotracheal intubation? A) Apnea B) Spinal injury C) Frequent use of cocaine D) Patients taking an anticoagulant

Answer 153

Spinal injury

Question 154

The paramedic should be especially diligent when confirming tube placement following blind nasotracheal intubation because: A) the ET tube cannot be secured effectively when it is in the nose. B) most patients who are intubated nasally are extremely combative. C) he or she did not visualize the tube passing between the vocal cords. D) most nasotracheal intubation attempts result in esophageal placement.

Answer 154

he or she did not visualize the tube passing between the vocal cords.

Question 155

The MOST common complication associated with nasotracheal intubation is: A) bleeding. B) aspiration. C) hypoxemia. D) regurgitation.

Answer 155

bleeding.

Question 156

The use of phenylephrine hydrochloride (Neo-Synephrine) during nasotracheal intubation will: A) reduce the likelihood and severity of nasal bleeding. B) sedate the patient and facilitate his or her compliance. C) dilate the nasal vasculature and facilitate tube insertion. D) anesthetize the nasopharynx and reduce patient discomfort

Answer 156

reduce the likelihood and severity of nasal bleeding

Question 157

When performing nasotracheal intubation, you should use an ET tube that is: A) equipped with a stylet in order to make the tube formfitting. B) uncuffed so as to avoid unnecessary damage to the nasal mucosa. C) slightly larger than the nostril into which the tube will be inserted. D) 1 to 1.5 mm smaller than you would use for orotracheal intubation

Answer 157

1 to 1.5 mm smaller than you would use for orotracheal intubation

Question 158

When nasally intubating a patient, the ET tube is advanced: A) as the patient exhales. B) when the patient inhales. C) when the patient swallows. D) in between the patient’s breaths.

Answer 158

when the patient inhales

Question 159

If you must insert the ET tube into the patient’s left nostril, you should: A) insert the tube straight back without rotating it. B) insert the tube with the beveled tip facing upward. C) ensure that the bevel is facing away from the septum. D) rotate the tube 180° as its tip enters the nasopharynx

Answer 159

rotate the tube 180° as its tip enters the nasopharynx

Question 160

If you see a soft-tissue bulge on either side of the airway when performing nasotracheal intubation: A) inadvertent esophageal intubation has likely occurred. B) you should completely remove the tube and reoxygenate. C) you have probably inserted the tube into the pyriform fossa. D) the tube is positioned correctly just above the glottic opening.

Answer 160

you have probably inserted the tube into the pyriform fossa

Question 161

Which of the following is NOT a step that is performed during nasotracheal intubation? A) Advancing the ET tube as the patient inhales B) Preoxygenating with a bag-mask as necessary C) Ensuring that the patient’s head is hyperflexed D) Placing the patient’s head in a neutral position

Answer 161

Ensuring that the patient’s head is hyperflexed

Question 162

Digital intubation is absolutely contraindicated if the patient: A) has copious airway secretions. B) is unconscious but breathing. C) is trapped in a confined space. D) is extremely obese or has a short neck.

Answer 162

is unconscious but breathing

Question 163

Digital intubation can be performed on trauma patients because: A) the head does not have to be placed in a sniffing position. B) most trauma patients have distortion of the airway anatomy. C) orotracheal intubation is unsafe to perform on trauma patients. D) the technique is easier to perform than other forms of intubation.

Answer 163

the head does not have to be placed in a sniffing position.

Question 164

Digital intubation should be performed only on a patient who has a bite block inserted in his or her mouth and who is_______ and _______. A) unconscious, apneic B) stuporous, bradypneic C) comatose, breathing inadequately D) semiconscious, tachypneic

Answer 164

unconscious, apneic

Question 165

The MOST significant complication associated with digital intubation is: A) hypoxia. B) dental trauma. C) airway swelling. D) vocal cord damage.

Answer 165

hypoxia

Question 166

Rigorous tube confirmation protocol must be followed after performing digital intubation because: A) inadvertent extubation of the patient is very common. B) capnography is unreliable in digitally intubated patients. C) ET tubes that are placed digitally do not have a pilot balloon. D) the procedure of digital intubation is truly a blind technique.

Answer 166

the procedure of digital intubation is truly a blind technique

Question 167

When determining whether transillumination-guided intubation should be attempted, you should: A) consider the amount of soft tissue that is overlying the trachea. B) avoid the procedure if the patient is thin or is greater than 6 ft tall. C) ensure the airway is clear of secretions by suctioning for 30 seconds. D) recall that patients with short necks are often easy to transilluminate.

Answer 167

consider the amount of soft tissue that is overlying the trachea

Question 168

Transillumination-guided intubation can be difficult or impossible to perform: A) in any patient with dentures. B) if the patient has oral secretions. C) in a brightly lit environment. D) in patients over 70 years of age.

Answer 168

in a brightly lit environment

Question 169

Which of the following represents the MOST correct technique for performing transillumination-guided intubation? A) Place the patient’s head in a hyperflexed position and insert the tube-stylet combination into the left side of the mouth. B) Grasp the lower jaw with your thumb and forefinger, displace it forward, and insert the tube-stylet combination in the midline of the patient’s mouth. C) Hyperextend the patient’s head, pull the jaw down, and insert the tube-stylet combination into the right side of the patient’s mouth. D) Place the patient’s head in a neutral position, displace the tongue with a tongue blade, and insert the tube-stylet combination in the midline of the mouth.

Answer 169

Grasp the lower jaw with your thumb and forefinger, displace it forward, and insert the tube-stylet combination in the midline of the patient’s mouth

Question 170

Which of the following indicates that the lighted stylet has entered the trachea? A) Dim, diffuse light at the anterior part of the neck B) Bulging of the soft tissue above the thyroid cartilage C) Tightly circumscribed light below the thyroid cartilage D) Absent illumination at the midline of the patient’s neck

Answer 170

Tightly circumscribed light below the thyroid cartilage

Question 171

Once you have confirmed that the lighted stylet-ET tube combination has entered the trachea, you should: A) secure the tube manually, remove the stylet, and attach a bag-mask device. B) slightly withdraw the stylet and tube to ensure placement above the carina. C) remove the lighted stylet and inflate the distal cuff with 5 to 10 mL of air. D) hold the stylet in place and advance the tube about 2 to 4 cm into the trachea

Answer 171

hold the stylet in place and advance the tube about 2 to 4 cm into the trachea

Question 172

During tracheobronchial suctioning, it is MOST important to: A) apply suction for no longer than 5 seconds in the adult. B) avoid rotating the catheter as you are suctioning the trachea. C) monitor the patient’s cardiac rhythm and oxygen saturation. D) inject 10 mL of saline down the ET tube to loosen secretions

Answer 172

monitor the patient’s cardiac rhythm and oxygen saturation

Question 173

Appropriate insertion of a soft-tip (whistle-tip) suction catheter down the ET tube involves: A) gently inserting the catheter until resistance is felt. B) inserting the catheter until secretions are observed. C) inserting the catheter no farther than 6 to 8 in. D) applying suction while gently inserting the catheter

Answer 173

gently inserting the catheter until resistance is felt

Question 174

After tracheobronchial suctioning is complete, you should: A) visualize the vocal cords to ensure the tube is still in the correct position. B) hyperventilate the patient at 24 breaths/min for approximately 3 minutes. C) instill 3 to 5 mL of saline down the tube to loosen any residual secretions. D) reattach the bag-mask device, continue ventilations, and reassess the patient

Answer 174

reattach the bag-mask device, continue ventilations, and reassess the patient

Question 175

Which of the following statements regarding field extubation is correct? A) It is generally better to sedate the patient rather than extubate. B) The patient should be extubated if spontaneous breathing occurs. C) The risk of laryngospasm following extubation is relatively low. D) Extubation should be performed with the patient in a supine position

Answer 175

It is generally better to sedate the patient rather than extubate

Question 176

The MOST obvious risk associated with extubation is: A) moderate airway swelling as the ET tube is removed. B) overestimating the patient’s ability to protect his or her own airway. C) patient retching and gagging as you remove the ET tube. D) stimulation of the parasympathetic nervous system with resulting bradycardia

Answer 176

overestimating the patient’s ability to protect his or her own airway.

Question 177

After confirming that an intubated patient remains responsive enough to maintain his or her own airway, you should first: A) fully deflate the distal cuff on the ET tube. B) have the patient sit up or lean slightly forward. C) suction the oropharynx to remove any secretions. D) insert an orogastric tube to ensure the stomach is empty

Answer 177

have the patient sit up or lean slightly forward

Question 178

Which of the following statements regarding pediatric ET intubation in the prehospital setting is correct? A) An average-sized toddler would require a 4.5-mm cuffed ET tube to secure the airway adequately. B) When intubating an infant or small child, it is important to remember that the epiglottis is less floppy. C) Bag-mask ventilation can be as effective as intubation for EMS systems that have short transport times. D) Because the pediatric airway is smaller than an adult’s, paramedics should routinely intubate children in the field.

Answer 178

Bag-mask ventilation can be as effective as intubation for EMS systems that have short transport times.

Question 179

In which of the following situations would ET intubation of a pediatric patient be LEAST necessary? A) Traumatic brain injury with unconsciousness B) Administration of certain resuscitative medications C) Cardiopulmonary arrest due to respiratory failure D) Difficulty effectively ventilating with a bag-mask

Answer 179

Administration of certain resuscitative medications

Question 180

When intubating a 3-year-old child, you would MOST likely use a: A) size 2 straight blade. B) 6.5-mm uncuffed ET tube. C) 5.0-mm cuffed ET tube. D) size 1 curved blade

Answer 180

size 2 straight blade

Question 181

What size ET tube would be MOST appropriate to use for a 4-year-old child? A) 3.5 mm B) 4.0 mm C) 4.5 mm D) 5.0 mm

Answer 181

5.0 mm

Question 182

Cuffed ET tubes are generally not used in the field until the child is 8 to 10 years old because: A) the cuff would apply pressure and obstruct the airway. B) the high-pressure cuff would likely rupture the trachea. C) most children are only intubated for short periods of time. D) a cuff at the cricoid ring is not necessary to obtain a seal.

Answer 182

a cuff at the cricoid ring is not necessary to obtain a seal

Question 183

Approximately how far should you insert a 5.0-mm ET tube in a 4-year-old child? A) 12 cm B) 15 cm C) 17 cm D) 19 cm

Answer 183

15 cm

Question 184

When preoxygenating an uninjured child prior to ET intubation, you should: A) place the child’s head in the sniffing position, insert an oral airway if needed, and ventilate with a bag-mask for at least 2 minutes. B) hyperextend the child’s head, insert an oral airway if needed, and hyperventilate the child at 40 breaths/min for at least 2 to 3 minutes. C) maintain the child’s head in a neutral position, insert an oral airway if needed, and deliver 1 breath every 10 seconds for at least 3 minutes. D) place the child’s head in the sniffing position, insert an oral airway if needed, and moderately hyperventilate the child at 24 breaths/min for 30 seconds

Answer 184

place the child’s head in the sniffing position, insert an oral airway if needed, and ventilate with a bag-mask for at least 2 minutes.

Question 185

In some cases, atropine sulfate, in a dose of ______, may be given to children to prevent vagal-induced bradycardia during ET intubation. A) 0.5 mg B) 1 to 2 mg C) 0.02 mg/kg D) at least 0.01 mg

Answer 185

0.02 mg/kg

Question 186

When intubating a 3-year-old child, you should insert the ET tube until: A) the distal cuff is 1 to 2 cm beyond the vocal cords. B) you meet resistance, and then withdraw the tube 2 cm. C) the vocal cord mark is 2 to 3 cm beyond the vocal cords. D) the cm marking on the tube reads 15 cm at the child’s lips

Answer 186

the vocal cord mark is 2 to 3 cm beyond the vocal cords

Question 187

Which of the following is NOT an appropriate method for confirming proper ET tube placement in a 15-kg child? A) Waveform capnography B) Esophageal bulb or syringe C) Bilateral auscultation of breath sounds D) Assessment of skin color and oxygen saturation

Answer 187

Esophageal bulb or syringe

Question 188

If intubation of a child is unsuccessful after two attempts, your MOST appropriate action is to: A) have your partner attempt to intubate as you apply gentle posterior pressure to the cricoid cartilage. B) insert a multilumen airway device and confirm placement by means of auscultation of breath sounds and capnography. C) turn the child on his or her side, apply manual pressure to the epigastrium to relieve distension, and reattempt intubation. D) discontinue attempts to intubate, ventilate the child with a bag-mask device, and transport immediately.

Answer 188

discontinue attempts to intubate, ventilate the child with a bag-mask device, and transport immediately.

Question 189

Which of the following clinical findings is LEAST suggestive of a pneumothorax in an intubated child? A) Decreased ventilation compliance B) Stronger breath sounds on the right side C) Persistent cyanosis despite ventilations D) Stronger breath sounds on the left side

Answer 189

Stronger breath sounds on the right side

Question 190

Using the DOPE mnemonic, which of the following interventions would you MOST likely have to perform if you suspect “O” as the cause of acute deterioration in the intubated child? A) Tracheobronchial suctioning B) Immediate extubation of the child C) Needle decompression of the chest D) Checking the bag-mask device for defects

Answer 190

Tracheobronchial suctioning

Question 191

The MOST effective way to minimize the risk of hypoxia while intubating a child is to: A) limit your intubation attempt to 20 seconds. B) monitor the child’s cardiac rhythm at all times. C) premedicate the child with 0.02 mg/kg of atropine. D) not allow the oxygen saturation to fall below 100%.

Answer 191

limit your intubation attempt to 20 seconds

Question 192

Which of the following statements regarding multilumen airways is correct? A) Multilumen airways can be used safely in pediatric patients if ET intubation is unsuccessful. B) To ensure proper placement, multilumen airways should be inserted under direct laryngoscopy. C) Multilumen airways are equipped with an oropharyngeal cuff, which eliminates the need for a mask seal. D) Compared with esophageal airways, multilumen airway devices have not been shown to provide better ventilation.

Answer 192

Multilumen airways are equipped with an oropharyngeal cuff, which eliminates the need for a mask seal.

Question 193

The major advantage of the multilumen airway is that: A) it can be used in children and adults as an alternative airway device. B) no mask seal is required to ventilate with either of the multilumen airways. C) intubating the trachea with the multilumen airway in place is extremely easy. D) effective ventilation is possible if the tube enters the esophagus or the trachea.

Answer 193

effective ventilation is possible if the tube enters the esophagus or the trachea.

Question 194

The MOST significant complication associated with the use of multilumen airways is: A) laryngospasm or vomiting during insertion of the tube. B) unrecognized displacement of the tube into the esophagus. C) vocal cord damage if the tube inadvertently enters the trachea. D) pharyngeal or esophageal trauma secondary to poor technique.

Answer 194

unrecognized displacement of the tube into the esophagus.

Question 195

In general, a multilumen airway should not be used in patients who are: A) greater than 6 ft tall. B) younger than 16 years of age. C) older than 65 years of age. D) less than 4 ft 5 in tall.

Answer 195

younger than 16 years of age.

Question 196

Multilumen airways are contraindicated in patients with: A) esophageal cancer. B) cervical spine trauma. C) traumatic cardiac arrest. D) a history of gastric ulcers.

Answer 196

esophageal cancer.

Question 197

After inserting the Combitube to the proper depth, you should next: A) inflate the distal cuff with 5 mL of air. B) ventilate through the pharyngeal tube. C) inflate the pharyngeal cuff with 100 mL of air. D) apply a cervical collar to minimize head movement.

Answer 197

inflate the pharyngeal cuff with 100 mL of air

Question 198

The LMA is: A) a suitable airway device for use in morbidly obese patients. B) an alternative to bag-mask ventilation when intubation is not possible. C) associated with a higher risk of damage to the vocal cords than intubation. D) especially effective for CHF patients who require high pulmonary pressures.

Answer 198

an alternative to bag-mask ventilation when intubation is not possible.

Question 199

The main disadvantage of the LMA is that it: A) does not provide protection against aspiration. B) spontaneously dislodges in the majority of patients. C) is associated with significant upper airway swelling. D) is technically more difficult to perform than intubation.

Answer 199

does not provide protection against aspiration

Question 200

During ventilation with the LMA, the paramedic should: A) observe the patient for signs of inadequate ventilation. B) maintain the patient’s head in a slightly flexed position. C) suction the patient’s oropharynx at least every 2 minutes. D) hyperventilate the patient to maximize tidal volume delivery.

Answer 200

observe the patient for signs of inadequate ventilation.

Question 201

When checking the cuff of the LMA prior to insertion, you should: A) stretch the cuff to check for tears or other damage. B) inflate the cuff with 100 mL of air and then deflate. C) gently pull on the cuff at the tube to ensure integrity. D) inflate the cuff with 50% more air than is required

Answer 201

inflate the cuff with 50% more air than is required

Question 202

A size 3 or 4 LMA: A) is most suitable for use in morbidly obese patients. B) is less likely to become dislodged than smaller sizes. C) will accommodate the passage of a 6.0-mm ET tube. D) is appropriate to use in children younger than 6 years of age.

Answer 202

will accommodate the passage of a 6.0-mm ET tube.

Question 203

Proper insertion of the LMA involves: A) inserting the LMA into the patient’s mouth by following the curvature of the patient’s tongue. B) lifting the patient’s jaw upward and blindly inserting the LMA until you meet resistance. C) flexing the patient’s neck, depressing the tongue with a tongue blade, and blindly inserting the LMA. D) inserting the LMA along the roof of the mouth and using your finger to push the airway against the hard palate.

Answer 203

inserting the LMA along the roof of the mouth and using your finger to push the airway against the hard palate.

Question 204

The King LT airway can be used to: A) administer certain cardiac medications directly into the trachea. B) maintain a patent airway in spontaneously breathing patients. C) establish a patent airway in patients of any age and body size. D) suction pulmonary secretions from the tracheobronchial tree

Answer 204

maintain a patent airway in spontaneously breathing patients

Question 205

Which of the following statements regarding the King LT airway is correct? A) In the prehospital setting, the King LTS-D is only used in adults. B) The King LT airway provides better airway protection than the ET tube. C) The King LT airway has two lumens that effectively seal the esophagus. D) In contrast to the King LT-D, the LTS-D is closed at the distal end.

Answer 205

In the prehospital setting, the King LTS-D is only used in adults.

Question 206

The King LT-D airway features a: A) straight tube with two inflatable cuffs that hold an equal amount of air. B) port through which gastric contents can be suctioned from the stomach. C) curved tube with ventilation ports located between two inflatable cuffs. D) universal size with two inflation ports and is used for patients of any age

Answer 206

curved tube with ventilation ports located between two inflatable cuffs

Question 207

The King airway should NOT be used in patients: A) with known esophageal disease. B) with prolonged cardiac arrest. C) with a traumatic brain injury. D) who weigh less than 25 kg

Answer 207

with known esophageal disease

Question 208

Proper placement of the King LT airway is performed by all of the following techniques, EXCEPT: A) auscultation of bilateral breath sounds. B) the esophageal detector device. C) quantitative waveform capnography. D) observation for symmetrical chest rise.

Answer 208

the esophageal detector device

Question 209

If ventilation is difficult after inserting a King LT airway, you should: A) deflate both of the cuffs, withdraw the device 2 cm, and reattempt ventilation. B) remove the King LT and immediately resume ventilation with a bag-mask. C) attach a manually triggered ventilator and observe for adequate chest rise. D) gently withdraw the device, without deflating the cuffs, until ventilation is easier.

Answer 209

gently withdraw the device, without deflating the cuffs, until ventilation is easier.

Question 210

When correctly placed, the distal tip of the Cobra perilaryngeal airway (CobraPLA): A) enters the esophagus and provides complete obturation. B) is proximal to the esophagus and seals the hypopharynx. C) is in almost perfect alignment with the esophageal opening. D) rests against the arytenoid cartilage and enters the glottis

Answer 210

is proximal to the esophagus and seals the hypopharynx

Question 211

If used properly, and under the correct circumstances, sedation during airway management: A) chemically paralyzes the patient, thus facilitating placement of an advanced airway device. B) effectively increases patient compliance, thus making definitive airway management safer to perform. C) significantly reduces the pain and discomfort associated with laryngoscopy and ET intubation. D) minimizes the risks of bradycardia and hypotension that occasionally occur during advanced airway management.

Answer 211

effectively increases patient compliance, thus making definitive airway management safer to perform.

Question 212

Undersedation of a patient during airway management would likely result in all of the following, EXCEPT: A) respiratory depression. B) trauma to the airway. C) poor patient compliance. D) tachycardia and hypertension

Answer 212

respiratory depression

Question 213

Fentanyl (Sublimaze) is a: A) narcotic analgesic. B) benzodiazepine sedative. C) sedative-hypnotic drug. D) butrophenone sedative.

Answer 213

narcotic analgesic

Question 214

Which of the following medications does NOT possess hypnotic properties? A) Versed B) Brevital C) Alfentanil D) Etomidate

Answer 214

Alfentanil

Question 215

Diazepam and midazolam provide all of the following therapeutic effects, EXCEPT: A) sedation. B) analgesia. C) anxiolysis. D) retrograde amnesia.

Answer 215

analgesia.

Question 216

Which of the following medications is safest to use in patients with borderline hypotension or hypovolemia? A) Brevital B) Pentothal C) Sublimaze D) Etomidate

Answer 216

Etomidate

Question 217

Neuromuscular blocking agents: A) are most commonly used as the sole agent to facilitate placement of an ET tube. B) convert a breathing patient with a marginal airway into an apneic patient with no airway. C) induce total body paralysis within 10 to 15 minutes following administration via IV push. D) have a negative effect on both cardiac and smooth muscle and commonly cause dysrhythmias.

Answer 217

convert a breathing patient with a marginal airway into an apneic patient with no airway

Question 218

When a patient is given a paralytic without sedation: A) he or she is fully aware and can hear and feel. B) you should only give one tenth of the standard dose. C) placement of an ET tube is less traumatic. D) paralysis is not achieved and intubation is not possible

Answer 218

he or she is fully aware and can hear and feel

Question 219

Paralytic medications exert their effect by: A) blocking the release of epinephrine and norepinephrine from the sympathetic nervous system. B) competitively binding to the motor neurons in the brain, thus blocking their ability to send messages. C) functioning at the neuromuscular junction and relaxing the muscle by impeding the action of acetylcholine. D) blocking the function of the autonomic nervous system and impeding the action of acetylcholinesterase.

Answer 219

functioning at the neuromuscular junction and relaxing the muscle by impeding the action of acetylcholine

Question 220

Nondepolarizing neuromuscular blocking agents include all of the following, EXCEPT: A) vecuronium bromide. B) rocuronium bromide. C) pancuronium bromide. D) succinylcholine chloride.

Answer 220

succinylcholine chloride.

Question 221

Which of the following is NOT characteristic of a depolarizing neuromuscular blocking agent? A) Bradycardia B) Tachycardia C) Muscle fasciculations D) Short duration of action

Answer 221

Tachycardia

Question 222

To prevent muscular fasciculations associated with the use of succinylcholine, you should administer: A) 0.5 mg of atropine sulfate via rapid IV push. B) 10% of the usual dose of a nondepolarizing paralytic. C) an infusion of potassium chloride set at 5 mEq per hour. D) 1 to 1.5 mg/kg of lidocaine over 10 to 15 minutes.

Answer 222

10% of the usual dose of a nondepolarizing paralytic.

Question 223

Drugs such as vecuronium bromide (Norcuron) and pancuronium bromide (Pavulon) are MOST appropriate to administer when: A) extended periods of paralysis are needed. B) longer-acting paralytics are contraindicated. C) you have a transport time of less than 15 minutes. D) intubation of the patient is anticipated to be difficult.

Answer 223

extended periods of paralysis are needed

Question 224

Before intubating a patient who has been chemically sedated and paralyzed, it is MOST important for the paramedic to: A) administer 0.5 mg of atropine sulfate. B) hyperventilate the patient at 24 breaths/min. C) adequately preoxygenate with 100% oxygen. D) suction the oropharynx to clear any secretions

Answer 224

adequately preoxygenate with 100% oxygen

Question 225

Which of the following medications has been shown to blunt the increase in intracranial pressure associated with suctioning and laryngeal stimulation? A) Atropine B) Lidocaine C) Amiodarone D) Furosemide

Answer 225

Lidocaine

Question 226

If the patient’s oxygen saturation drops at any point during rapid-sequence intubation, you should: A) stop and hyperventilate the patient at a rate of 24 breaths/min. B) abort the intubation attempt and ventilate with a bag-mask device. C) apply posterior cricoid pressure and continue the intubation attempt. D) continue the intubation attempt and monitor the cardiac rhythm closely

Answer 226

abort the intubation attempt and ventilate with a bag-mask device.

Question 227

The external jugular veins run ____________ and are located ____________ to the cricothyroid membrane. A) vertically, lateral B) vertically, medial C) horizontally, lateral D) horizontally, medial

Answer 227

vertically, lateral

Question 228

When performing an open cricothyrotomy, you will MOST likely avoid damage to the jugular veins if: A) the patient’s head is hyperextended. B) you incise the cricothyroid membrane at a transverse angle. C) the patient’s head is in a neutral position. D) the cricothyroid membrane is incised vertically

Answer 228

the cricothyroid membrane is incised vertically

Question 229

The cricothyroid membrane is the ideal site for making a surgical opening into the trachea because: A) no important structures lie between the skin covering the cricothyroid membrane and the airway. B) the tough cartilage that comprises the cricothyroid membrane can easily be incised with a scalpel. C) there are no major blood vessels or other structures that lie adjacent to the cricothyroid membrane. D) the cricoid cartilage helps prevent accidental perforation through the back of the airway and into the esophagus

Answer 229

no important structures lie between the skin covering the cricothyroid membrane and the airway.

Question 230

Open cricothyrotomy is indicated when: A) ET intubation is unsuccessful after three attempts. B) all other methods of advanced airway management have failed. C) you are unable to secure a patent airway with less invasive means. D) the patient has a head injury that precludes nasotracheal intubation.

Answer 230

you are unable to secure a patent airway with less invasive means

Question 231

Open cricothyrotomy is generally contraindicated in all of the following situations, EXCEPT: A) tracheal tumors or subglottic stenosis. B) any patient who is younger than 16 years of age. C) crushing laryngeal injuries or tracheal transection. D) inability to identify the correct anatomic landmarks.

Answer 231

any patient who is younger than 16 years of age.

Question 232

In contrast to a needle cricothyrotomy, an open cricothyrotomy: A) involves the use of a high-pressure jet ventilator. B) enables the paramedic to provide greater tidal volume. C) is the preferred technique in patients with short, fat necks. D) is easier to perform in children younger than 8 years of age.

Answer 232

enables the paramedic to provide greater tidal volume.

Question 233

Incising the cricothyroid membrane vertically will: A) minimize the risk of damaging the thyroid gland. B) facilitate insertion of an 8.0- to 9.0-mm ET tube. C) completely eliminate the risk of any external bleeding. D) increase the risk of damaging the external jugular veins

Answer 233

minimize the risk of damaging the thyroid gland

Question 234

You should be MOST suspicious of tube misplacement following an open cricothyrotomy if: A) bleeding from the subcutaneous tissues is observed. B) there is minimal rise of the chest during ventilations. C) progressive redness is noted around the insertion site. D) a crackling sensation is noted when palpating the neck.

Answer 234

a crackling sensation is noted when palpating the neck.

Question 235

When performing an open cricothyrotomy, you should FIRST: A) maintain aseptic technique as you cleanse the area with iodine. B) slide your index finger between the thyroid and cricoid cartilages. C) palpate for the V notch of the thyroid cartilage and stabilize the larynx. D) hyperextend the patient’s neck and then palpate the cricoid cartilage.

Answer 235

palpate for the V notch of the thyroid cartilage and stabilize the larynx

Question 236

Which of the following statements regarding translaryngeal catheter ventilation is correct? A) It is more difficult to perform than an open cricothyrotomy. B) It provides a more definitive airway than an open cricothyrotomy. C) Ventilation is achieved by the use of a high-pressure jet ventilator. D) The technique uses the tracheal wall as an entry point to the airway.

Answer 236

Ventilation is achieved by the use of a high-pressure jet ventilator.

Question 237

Needle cricothyrotomy is contraindicated in patients with: A) uncontrolled oropharyngeal bleeding. B) obstruction above the catheter insertion site. C) massive maxillofacial trauma and trismus. D) a suspected injury to the cervical spine.

Answer 237

obstruction above the catheter insertion site.

Question 238

Because the high-pressure ventilator used with needle cricothyrotomy would cause an increase in intrathoracic pressure, ___________ and ___________ may result. A) hypercarbia, hypoxia B) barotrauma, pneumothorax C) hypoventilation, hypocarbia D) esophageal rupture, hemorrhage

Answer 238

barotrauma, pneumothorax

Question 239

Compared with an open cricothyrotomy, needle cricothyrotomy: A) allows for subsequent attempts to intubate the patient. B) requires the paramedic to manipulate the patient’s cervical spine. C) is technically more difficult and takes longer to perform. D) is associated with a higher risk of damage to adjacent structures.

Answer 239

allows for subsequent attempts to intubate the patient

Question 240

The MOST significant disadvantage associated with needle cricothyrotomy is: A) air leakage around the insertion site. B) the inability to exhale via the glottis. C) local infection due to poor technique. D) the potential for pulmonary aspiration.

Answer 240

the potential for pulmonary aspiration.

Question 241

After inserting the needle into through the cricothyroid membrane, you should next: A) change your angle to 90° and advance the catheter over the needle. B) aspirate with the syringe and then insert the needle about 2 cm farther. C) insert the needle about 1 cm farther and then aspirate with the syringe. D) advance the catheter over the needle until the hub is flush with the skin.

Answer 241

insert the needle about 1 cm farther and then aspirate with the syringe

Question 242

You should turn the jet ventilator release valve off when: A) the audible alarm sounds. B) wide chest expansion is noted. C) the patient’s chest visibly rises. D) you can auscultate breath sounds.

Answer 242

the patient’s chest visibly rises.

Question 243

Proper insertion of the needle into the cricothyroid membrane involves a ___ angle toward the ________. A) 45°, feet B) 90°, posterior trachea C) 45°, posterior trachea D) 90°, feet

Answer 243

45°, feet

Question 244

A surgical opening into the trachea is called a: A) stoma. B) laryngectomy. C) laryngectomee. D) tracheostomy.

Answer 244

tracheostomy.

Question 245

Patients with a partial laryngectomy: A) have had their entire larynx removed and breathe through an opening in the neck called a stoma. B) are called partial neck breathers because they breathe through both a stoma and the nose and mouth. C) are easy to differentiate from patients who have had a total laryngectomy, especially when they are apneic. D) cannot be ventilated with the mouth-to-mask technique because there is no connection between the pharynx and lower airway

Answer 245

are called partial neck breathers because they breathe through both a stoma and the nose and mouth.

Question 246

Patients with laryngectomies MOST commonly develop mucous plugs in their stoma because: A) they are at higher risk for pneumonia. B) they do not possess an efficient cough. C) the diameter of the stoma is small. D) their swallowing mechanism is suppressed

Answer 246

they do not possess an efficient cough

Question 247

When suctioning a patient’s stoma, you should: A) insert the catheter until resistance is felt. B) ask the patient to inhale as you are suctioning. C) insert the catheter no more than 15 cm. D) provide suction for no longer than 20 seconds.

Answer 247

insert the catheter until resistance is felt

Question 248

If a patient has a stoma and no tracheostomy tube in place: A) you should not seal the nose and mouth when ventilating. B) suctioning of the stoma must be performed before ventilating. C) ventilations can be performed by placing a mask over the stoma. D) you must perform a head tilt-chin lift maneuver before ventilating.

Answer 248

ventilations can be performed by placing a mask over the stoma

Question 249

Whether you are providing ventilations to a patient with a stoma using a resuscitation mask or bag-mask device, you must FIRST: A) perform a head tilt-chin lift maneuver. B) place the patient’s head in a neutral position. C) adequately cleanse the stoma site with iodine. D) suction the stoma for no longer than 10 seconds

Answer 249

place the patient’s head in a neutral position

Question 250

In order for a tracheostomy tube to be compatible with a mechanical ventilator or bag-mask device: A) it should have a stylet that can be removed easily. B) it should have an internal diameter of at least 6.0 mm. C) the patient’s head must be in a hyperextended position. D) it must be equipped with a 15/22-mm proximal adaptor.

Answer 250

it must be equipped with a 15/22-mm proximal adaptor

Question 251

When replacing a dislodged tracheostomy tube, it is MOST important that you: A) insert the tube 2 cm beyond the cuff. B) take appropriate standard precautions. C) lubricate the tube before insertion. D) use a tracheostomy tube of the same size.

Answer 251

take appropriate standard precautions

Question 252

Removal of a dental appliance after intubating a patient is: A) dangerous and may cause dislodgement of the tube. B) generally preferred but should be performed carefully. C) mandatory in the event the patient will require surgery. D) acceptable only if the device is an upper or lower bridge.

Answer 252

dangerous and may cause dislodgement of the tube

Question 253

Which of the following interventions is NOT appropriate when treating an unresponsive patient whose airway is obstructed by a dental appliance? A) Abdominal thrusts B) Chest compressions C) Direct laryngoscopy D) Use of Magill forceps

Answer 253

Abdominal thrusts

Question 254

When ventilating a patient with facial injuries, it is MOST important to: A) ventilate with a higher-than-normal volume. B) suction the oropharynx every 2 to 3 minutes. C) be alert for changes in ventilation compliance. D) ensure that a cervical collar has been applied.

Answer 254

be alert for changes in ventilation compliance

Question 255

If the distance between the hyoid bone and the thyroid notch is at least ___ cm wide, the difficulty of intubation should be low. A) 1 B) 2 C) 3 D) 4

Answer 255

2

Question 256

A mouth-opening width of less than ___ cm indicates a potentially difficult airway. A) 3 B) 4 C) 5 D) 6

Answer 256

3

Question 257

When looking inside a patient’s mouth, you cannot see the posterior pharynx and only the base of the uvula is exposed. This is indicative of a Mallampati Class: A) I. B) II. C) III. D) IV.

Answer 257

III

Question 258

With regard to intubation difficulty, neck mobility problems are MOST commonly associated with: A) female patients. B) tall, thin patients. C) small children. D) elderly patients.

Answer 258

elderly patients.

Question 259

Which of the following patients has the lowest minute volume? A) Tidal volume of 400 mL; respiratory rate of 14 breaths/min B) Tidal volume of 350 mL; respiratory rate of 12 breaths/min C) Tidal volume of 400 mL; respiratory rate of 24 breaths/min D) Tidal volume of 300 mL; respiratory rate of 16 breaths/min

Answer 259

Tidal volume of 350 mL; respiratory rate of 12 breaths/min

Question 260

After opening an unresponsive patient’s airway, you determine that his respirations are rapid, irregular, and shallow. You should: A) intubate him at once. B) apply a nonrebreathing mask. C) suction his mouth for 15 seconds. D) begin positive-pressure ventilations.

Answer 260

begin positive-pressure ventilations

Question 261

Which of the following patients is LEAST likely in need of positive-pressure ventilation? A) Confused 46-year-old woman with labored respirations, adventitious breath sounds, and pallor B) Conscious 41-year-old woman with two-word dyspnea, perioral cyanosis, and tachycardia C) Semiconscious 39-year-old man with shallow chest wall movement, cyanosis, and bradypnea D) Conscious 36-year-old man with difficulty breathing, symmetrical chest rise and fall, and flushed skin

Answer 261

Conscious 36-year-old man with difficulty breathing, symmetrical chest rise and fall, and flushed skin

Question 262

Which of the following findings is MOST clinically significant in a 30-year-old woman with difficulty breathing and a history of asthma? A) Oral temperature of 97.9°F B) Expiratory wheezing on exam C) Prior ICU admission for her asthma D) 3 mm Hg drop in systolic BP during inhalation

Answer 262

Prior ICU admission for her asthma

Question 263

After obtaining a peak expiratory flow reading of 200 mL, you administered one bronchodilator treatment to a 21-year-old woman with an acute episode of expiratory wheezing. The next peak flow reading is 400 mL. You should: A) recognize that the patient’s condition has improved. B) give another bronchodilator treatment and reassess. C) try another treatment modality to treat her wheezing. D) assist ventilations and be prepared to intubate her.

Answer 263

recognize that the patient’s condition has improved

Question 264

You respond to a residence for a possible overdose. The patient, a young man, is unresponsive with slow, snoring respirations. There are obvious needle track marks on his arms. Your FIRST action should be to: A) insert an oral airway. B) suction his oropharynx. C) manually open his airway. D) begin ventilation assistance.

Answer 264

manually open his airway.

Question 265

A 40-year-old man fell 20 ft from a tree while trimming branches. Your assessment reveals that he is unresponsive. You cannot open his airway effectively with the jaw-thrust maneuver. You should: A) insert a nasopharyngeal airway and assess his respirations. B) carefully open his airway with the head tilt-chin lift maneuver. C) assist his ventilations and prepare to intubate him immediately. D) suction his oropharynx and reattempt the jaw-thrust maneuver

Answer 265

carefully open his airway with the head tilt-chin lift maneuver

Question 266

A 50-year-old woman presents with acute respiratory distress while eating. Upon your arrival, you note that she is conscious, coughing, and wheezing between coughs. Further assessment reveals that her skin is pink and moist. In addition to transporting her to the hospital, you should: A) perform abdominal thrusts until she becomes unconscious. B) encourage her to cough and closely monitor her condition. C) deliver positive-pressure ventilations via bag-mask device. D) look in her mouth and attempt to visualize a foreign body.

Answer 266

encourage her to cough and closely monitor her condition

Question 267

Two attempts to ventilate an unconscious 10-year-old boy have been unsuccessful. You should next: A) intubate his trachea. B) deliver abdominal thrusts. C) look inside the patient’s mouth. D) perform chest compressions.

Answer 267

perform chest compressions

Question 268

Several cycles of basic life support maneuvers have failed to relieve a severe airway obstruction in an unresponsive 44-year-old woman. You should: A) intubate the patient and attempt to push the foreign body into one of the mainstem bronchi. B) continue basic life support maneuvers and transport the patient to the hospital immediately. C) perform direct laryngoscopy and attempt to remove the obstruction with Magill forceps. D) place the patient’s head in a neutral position and perform an emergency cricothyrotomy.

Answer 268

perform direct laryngoscopy and attempt to remove the obstruction with Magill forceps

Question 269

After inserting an oropharyngeal airway in an unresponsive woman, the patient begins to gag. You should: A) remove the airway and have suction ready. B) suction her oropharynx for up to 15 seconds. C) spray an anesthetic medication into her mouth. D) turn the patient on her side in case she vomits.

Answer 269

remove the airway and have suction ready

Question 270

A construction worker fell approximately 15 ft and landed on his head. He is semiconscious. His respiratory rate is 14 breaths/min with adequate depth. Further assessment reveals blood draining from his nose. You should: A) administer oxygen via nonrebreathing mask and continue your assessment. B) insert a nasopharyngeal airway and assist ventilations with a bag-mask device. C) suction his nasopharynx for up to 30 seconds and apply oxygen via nasal cannula. D) insert a nasopharyngeal airway and administer oxygen via nonrebreathing mask

Answer 270

administer oxygen via nonrebreathing mask and continue your assessment

Question 271

A 19-year-old woman ingested a large quantity of Darvon. She is responsive to pain only and has slow, shallow respirations. The MOST appropriate airway management for this patient involves: A) inserting an oral airway and assisting ventilations with a bag-mask device. B) inserting a nasal airway and assisting ventilations with a bag-mask device. C) inserting an oral airway and administering oxygen via nonrebreathing mask. D) suctioning her airway, inserting an oral airway, and administering 100% oxygen.

Answer 271

inserting a nasal airway and assisting ventilations with a bag-mask device

Question 272

A 66-year-old woman is found to be unresponsive and apneic. Her carotid pulse is weak and rapid. When ventilating this patient, you should deliver: A) each breath over 2 seconds at a rate of 8 to 10 breaths/min. B) one breath over 1 second every 3 to 5 seconds C) one breath over 2 seconds every 5 to 6 seconds. D) each breath over 1 second at a rate of 10 to 12 breaths/min.

Answer 272

each breath over 1 second at a rate of 10 to 12 breaths/min

Question 273

You have been providing bag-mask ventilations to an unresponsive, apneic patient with facial trauma for approximately 10 minutes. After intubating the patient, you should: A) hyperventilate the patient with 100% oxygen. B) insert a nasogastric tube to decompress the stomach. C) insert an orogastric tube to relieve gastric distention. D) ventilate the patient at a rate of 12 to 20 breaths/min

Answer 273

insert an orogastric tube to relieve gastric distention

Question 274

Approximately 10 seconds into an intubation attempt, you catch a glimpse of the patient’s vocal cords, but quickly lose sight of them. You should: A) sweep the patient’s tongue to the right side of the mouth and revisualize. B) abort the intubation attempt and ventilate the patient with a bag-mask device. C) ask your partner to apply backward, upward, rightward pressure to the thyroid. D) gently pry back on the laryngoscope to improve your view of the upper airway

Answer 274

ask your partner to apply backward, upward, rightward pressure to the thyroid

Question 275

You are intubating a 60-year-old man in cardiac arrest and have visualized the ET tube passing between the vocal cords. After removing the laryngoscope blade from the patient’s mouth, manually stabilizing the tube, and removing the stylet, you should: A) inflate the distal cuff with 5 to 10 mL of air. B) attach an ETCO2 detector to the tube. C) secure the ET tube with a commercial device. D) begin ventilations and auscultate breath sounds

Answer 275

inflate the distal cuff with 5 to 10 mL of air.

Question 276

After you have intubated an apneic patient with chest trauma, your partner is auscultating breath sounds and tells you that breath sounds are faint on the right side of the chest. You should: A) slightly withdraw the tube as your partner auscultates breath sounds. B) suspect that the patient has a pneumothorax on the right side of the chest. C) immediately remove the ET tube and oxygenate the patient for 30 seconds. D) increase the force of your ventilations as your partner reauscultates the lungs.

Answer 276

suspect that the patient has a pneumothorax on the right side of the chest

Question 277

You are transporting an intubated patient and note that the digital capnometry reading has quickly fallen below 30 mm Hg. You should: A) hyperventilate the patient to see if the ETCO2 reading increases. B) slow your ventilation rate to see if the ETCO2 reading decreases. C) promptly extubate the patient and ventilate with a bag-mask device. D) take immediate measures to confirm proper placement of the ET tube

Answer 277

take immediate measures to confirm proper placement of the ET tube

Question 278

You are caring for a 69-year-old man with congestive heart failure. His breathing is profoundly labored, his oxygen saturation reads 79% on oxygen via nonrebreathing mask, and he is showing signs of physical exhaustion. Considering that your protocols do not allow you to perform rapid-sequence intubation, you should: A) insert an oral airway, assist ventilations with a bag-mask device, and transport at once. B) preoxygenate him with a bag-mask device and then perform blind nasotracheal intubation. C) give him Valium for sedation, perform orotracheal intubation, and transport to the hospital at once. D) insert a nasopharyngeal airway and ensure that the nonrebreathing mask is tightly secured to his face.

Answer 278

preoxygenate him with a bag-mask device and then perform blind nasotracheal intubation

Question 279

Several attempts to orotracheally intubate an unresponsive, apneic young man have failed. You resume bag-mask ventilations and begin transport to a hospital located 25 miles away. En route, you begin having difficulty maintaining an adequate mask-to-face seal with the bag-mask device. Assuming that you have the proper equipment, which of the following techniques to secure a patent airway would be MOST appropriate? A) Transillumination intubation B) Blind nasotracheal intubation C) An open or needle cricothyrotomy D) Further attempts at orotracheal intubation

Answer 279

Transillumination intubation

Question 280

You have intubated a 70-year-old man with chronic bronchitis and are en route to the hospital. During transport, you note that ventilations are becoming increasingly difficult and the digital capnometry reading is falling. Your partner tells you that she can still hear bilaterally equal breath sounds, but they are faint. She further tells you that there are no sounds over the epigastrium. What intervention is MOST likely indicated for this patient? A) Immediate extubation B) Withdrawing the tube 2 cm C) Tracheobronchial suctioning D) Hyperventilation at 24 breaths/min

Answer 280

Tracheobronchial suctioning

Question 281

An intubated 33-year-old man is becoming agitated and begins moving his head around. Your estimated time of arrival at the hospital is 15 minutes. You should: A) administer a sedative medication. B) suction his airway and carefully extubate. C) chemically paralyze him with vecuronium. D) physically restrain his head to the stretcher.

Answer 281

administer a sedative medication

Question 282

You are attempting to intubate a 5-year-old girl when you note that her heart rate has fallen from 120 beats/min to 80 beats/min. A patent IV line has been established. The MOST appropriate action is to: A) administer 0.02 mg/kg of atropine to increase her heart rate. B) abort the intubation attempt and begin chest compressions at 100/min. C) give a 20 mL/kg normal saline bolus and continue your intubation attempt. D) abort the attempt and ventilate with a bag-mask device and 100% oxygen.

Answer 282

abort the attempt and ventilate with a bag-mask device and 100% oxygen.

Question 283

While transporting an intubated 8-year-old boy, he suddenly jerks his head and becomes cyanotic shortly thereafter. His oxygen saturation and capnometry readings are both falling, and he is becoming bradycardic. You attempt to auscultate breath sounds, but are unable to hear because of the drone of the engine. What has MOST likely happened? A) Tension pneumothorax B) Inadvertent extubation C) Obstruction of the tube D) Right mainstem intubation

Answer 283

Inadvertent extubation

Question 284

You have just inserted a Combitube in a 59-year-old cardiac arrest patient. You attach the bag-mask device to the pharyngeal (blue) tube, begin ventilations, and note the presence of bilaterally equal breath sounds, absent epigastric sounds, and visible chest rise. You should: A) perform laryngoscopy to visualize placement of the Combitube. B) continue to ventilate and use additional confirmation techniques. C) continue ventilating the patient at a rate of 10 to 12 breaths/min. D) ventilate through the clear tube and auscultate all four lung fields

Answer 284

continue to ventilate and use additional confirmation techniques

Question 285

You are assessing a young woman who was struck in the head with a baseball bat. The patient is semiconscious and has slow, irregular respirations. Further assessment reveals CSF drainage from her nose and periorbital ecchymosis. She has blood in her mouth, but clenches her teeth and becomes combative when you attempt to suction her oropharynx. The MOST appropriate airway management for this patient involves: A) sedating her with a benzodiazepine, chemically paralyzing her with a neuromuscular blocker, and intubating her trachea. B) suctioning along the inside of her cheek with a whistle-tip catheter and then performing blind nasotracheal intubation. C) opening her mouth with a dental prod, suctioning her oropharynx for 15 seconds, and intubating her trachea via direct laryngoscopy. D) inserting a nasopharyngeal airway, administering supplemental oxygen via nonrebreathing mask, and continuing suction attempts.

Answer 285

sedating her with a benzodiazepine, chemically paralyzing her with a neuromuscular blocker, and intubating her trachea.

Question 286

A 36-year-old man experienced significant burns to his face, head, and chest following an incident with a barbeque pit. Your assessment of his airway reveals severe swelling. After administering medications to sedate and paralyze the patient, you are unable to intubate him. Furthermore, bag-mask ventilations are producing minimal chest rise. The quickest way to secure a patent airway in this patient is to: A) ventilate with a demand valve. B) insert a LMA. C) perform a needle cricothyrotomy. D) perform an open cricothyrotomy

Answer 286

perform a needle cricothyrotomy.

Question 287

You are dispatched to the residence of a 19-year-old man who has a tracheostomy tube and is on a mechanical ventilator. According to the patient’s mother, he began experiencing difficulty breathing about 30 minutes ago. Auscultation of his lungs reveals bilaterally diminished breath sounds, and his oxygen saturation is 90%. You disconnect the patient from the mechanical ventilator and begin bag-mask ventilations; however, you meet significant resistance. You should: A) suspect that he has bilateral pneumothoraces. B) ventilate with a demand valve and transport at once. C) remove the bag-mask and suction his tracheostomy tube. D) remove his tracheostomy tube and replace it with a new one.

Answer 287

remove the bag-mask and suction his tracheostomy tube

Question 288

A young woman experienced massive facial trauma after being ejected from her car when it struck a tree. She is semiconscious, has blood draining from her mouth, and has poor respiratory effort. The MOST appropriate initial airway management for this patient involves: A) vigorously suctioning her oropharynx for no longer than 15 seconds and then inserting a multilumen airway device. B) alternating suctioning her oropharynx for 15 seconds and assisting her ventilations for 2 minutes until you can definitively secure her airway. C) suctioning her oropharynx and performing direct laryngoscopy to assess the amount of upper airway damage or swelling that is present. D) providing positive-pressure ventilatory support with a bag-mask device and making preparations to perform an open cricothyrotomy.

Answer 288

alternating suctioning her oropharynx for 15 seconds and assisting her ventilations for 2 minutes until you can definitively secure her airway.