Test 4

Question 1

Correct statement regarding normal gas exchange in the lungs

Answer 1

O2 and CO2 diffuse across the alveolar walls and capillaries

Question 2

Structure that is NOT found in the upper airway

Answer 2

bronchus

Question 3

Leaf shape structure superior to the larynx

Answer 3

epiglottis

Question 4

What is a firm ring that forms the inferior part of the larynx

Answer 4

cricoid cartilage

Question 5

Physical act of moving air into and out of the lungs

Answer 5

ventilation

Question 6

tidal volume is defined as the volume of air that

Answer 6

moves into or out of the lungs in a single breath

Question 7

Hypoxia is most accurately defined as

Answer 7

inadequate O2 to the tissues and cells

Question 8

Late sign of hypoxia

Answer 8

cyanosis

Question 9

the hypoxic drive is

Answer 9

the primary stimulus to breathe for patients with certain chronic respiratory disease

Question 10

hypoxic drive is influenced by

Answer 10

low blood O2 levels

Question 11

most common cause of airway obstruction in an unconscious patient

Answer 11

the tongue

Question 12

jaw-thrust maneuver is used to open airway of

Answer 12

pt with suspected c-spine injuries

Question 13

In contrast to inhalation, exhalation

Answer 13

is a passive process caused by increased intrathoracic pressure

Question 14

gas exchange in the lungs is facilitated by

Answer 14

adequate amounts of surfactant

Question 15

each cell of the body combines nutrients and O2 and produces energy and waste products through a process called

Answer 15

metabolism

Question 16

which of the following statements regarding pulse oximitery is correct

Answer 16

pulse oximetry measures the % of hemoglobin that is saturated with O2 but doesn’t measure the actual hemoglobin content of the blood

Question 17

2 processes that occur during respiration

Answer 17

inspiration and expiration

Question 18

acute pulmonary edema would most likely develop as the result of

Answer 18

toxic chemical inhalation

Question 19

harsh high pitched inspiratory sounds are characteristic of

Answer 19

stridor

Question 20

While auscultating an elderly woman’s breath sounds, you hear low-pitched rattling sounds at the bases of both lungs; with which of the following conditions is this finding most consistent

Answer 20

aspiration pneumonia

Question 21

When assessing for fluid collection in the lungs during auscultation of lung sounds, you should

Answer 21

start at the lower lung fields and determine at which level you start hearing clear breath sounds

Question 22

Adventitious sounds means that the patient has

Answer 22

abnormal breath sounds

Question 23

common signs of acute hyperventilation syndrome include

Answer 23

tachypnea and tingling in the extremities

Question 24

a pleural effusion is most accurately defined as

Answer 24

fluid accumulation outside the lung

Question 25

at the onset of an acute asthma attack, patients commonly experience difficulty breathing and

Answer 25

expiratory wheezing

Question 26

asthma is caused by a response of the

Answer 26

immune system

Question 27

paroxysmal nocturnal dyspnea (PND) rales and dependent edema are clinical indicators of

Answer 27

CHF

Question 28

when the level of arterial carbon dioxide rises above mortal

Answer 28

the brain stem inhibits respirations

Question 29

in a healthy individual, the brain stem stimulates breathing on the basis of

Answer 29

increased carbon dioxide levels

Question 30

in order for efficient pulmonary as exchange to occur

Answer 30

O2 and co2 must be able to freely diffuse across the alveolar-capillary membrane

Question 31

In what area of the lungs does respiration occur

Answer 31

alveoli

Question 32

How does CPAP improve oxygenation and ventilation in patients with certain respiratory problems?

Answer 32

It forces the alveoli open and pushes more O2 across the alveolar membrane

Question 33

At a flow rate of 6 L/min a nasal cannula can deliver an approximate O2 concentration of up to

Answer 33

44%

Question 34

prior to applying a nonrebreathing mask on a pt you must ensure that the

Answer 34

reservoir bag is fully inflated

Question 35

a pt who is suspected of being hypoxic and is breathing adequate should be given supplemental O2 with a

Answer 35

nasal cannula

Question 36

the purpose of the pin-indexing system that has been established for compressed gas cylinders is to

Answer 36

ensure that the correct regulator is used for the cylinder

Question 37

Which of the following patients would most likely require insertion of an OPA?

Answer 37

a 40 y/o unconscious pt with slow, shallow respirations

Question 38

Successful treatment of stroke depends on whether

Answer 38

thrombolytic therapy is given within 3 hours after symptoms began

Question 39

3 major parts of the brain

Answer 39

cerebrum, cerebellum, brain stem

Question 40

brain stem controls

Answer 40

breathing, BP, swallowing

Question 41

muscle control and body coordination are controlled by the

Answer 41

cerebellum