Brunner Ch 21: Respiratory Care Modalities Flashcards
(40 cards)
The nurse is caring for a patient with chronic obstructive pulmonary disease (COPD). The patient has been receiving high-flow oxygen therapy for an extended time. What symptoms should the nurse anticipate if the patient were experiencing oxygen toxicity? A) Bradycardia and frontal headache B) Dyspnea and substernal pain C) Peripheral cyanosis and restlessness D) Hypotension and tachycardia
Ans: B
Feedback:
Oxygen toxicity can occur when patients receive too high a concentration of oxygen for an extended period. Symptoms of oxygen toxicity include dyspnea, substernal pain, restlessness, fatigue, and progressive respiratory difficulty. Bradycardia, frontal headache, cyanosis, hypotension, and tachycardia are not symptoms of oxygen toxicity.
The nurse caring for a patient with an endotracheal tube recognizes several disadvantages of an endotracheal tube. What would the nurse recognize as a disadvantage of endotracheal tubes?
A) Cognition is decreased.
B) Daily arterial blood gases (ABGs) are necessary.
C) Slight tracheal bleeding is anticipated.
D) The cough reflex is depressed.
Ans: D
Feedback:
There are several disadvantages of an endotracheal tube. Disadvantages include suppression of the patients cough reflex, thickening of secretions, and depressed swallowing reflexes. Ulceration and stricture of the larynx or trachea may develop, but bleeding is not an expected finding. The tube should not influence cognition and daily ABGs are not always required.
What would the critical care nurse recognize as a condition that may indicate a patients need to have a tracheostomy?
A) A patient has a respiratory rate of 10 breaths per minute.
B) A patient requires permanent ventilation.
C) A patient exhibits symptoms of dyspnea.
D) A patient has respiratory acidosis.
Ans: B
Feedback:
A tracheostomy permits long-term use of mechanical ventilation to prevent aspiration of oral and gastric secretions in the unconscious or paralyzed patient. Indications for a tracheostomy do not include a respiratory rate of 10 breaths per minute, symptoms of dyspnea, or respiratory acidosis.
The medical nurse is creating the care plan of an adult patient requiring mechanical ventilation. What nursing action is most appropriate?
A) Keep the patient in a low Fowlers position.
B) Perform tracheostomy care at least once per day.
C) Maintain continuous bedrest.
D) Monitor cuff pressure every 8 hours.
Ans: D
Feedback:
The cuff pressure should be monitored every 8 hours. It is important to perform tracheostomy care at least every 8 hours because of the risk of infection. The patient should be encouraged to ambulate, if possible, and a low Fowlers position is not indicated.
The nurse is caring for a patient who is scheduled to have a thoracotomy. When planning preoperative teaching, what information should the nurse communicate to the patient?
A) How to milk the chest tubing
B) How to splint the incision when coughing
C) How to take prophylactic antibiotics correctly
D) How to manage the need for fluid restriction
Ans: B
Prior to thoracotomy, the nurse educates the patient about how to splint the incision with the hands, a pillow, or a folded towel. The patient is not taught how to milk the chest tubing because this is performed by the nurse. Prophylactic antibiotics are not normally used and fluid restriction is not indicated following thoracotomy.
A nurse is educating a patient in anticipation of a procedure that will require a water-sealed chest drainage system. What should the nurse tell the patient and the family that this drainage system is used for?
A) Maintaining positive chest-wall pressure
B) Monitoring pleural fluid osmolarity
C) Providing positive intrathoracic pressure
D) Removing excess air and fluid
Ans: D
Feedback:
Chest tubes and closed drainage systems are used to re-expand the lung involved and to remove excess air, fluid, and blood. They are not used to maintain positive chest-wall pressure, monitor pleural fluid, or provide positive intrathoracic pressure.
A patient is exhibiting signs of a pneumothorax following tracheostomy. The surgeon inserts a chest tube into the anterior chest wall. What should the nurse tell the family is the primary purpose of this chest tube? A) To remove air from the pleural space B) To drain copious sputum secretions C) To monitor bleeding around the lungs D) To assist with mechanical ventilation
Ans: A
Feedback:
Chest tubes and closed drainage systems are used to re-expand the lung involved and to remove excess air, fluid, and blood. The primary purpose of a chest tube is not to drain sputum secretions, monitor bleeding, or assist with mechanical ventilation.
A patients plan of care specifies postural drainage. What action should the nurse perform when providing this noninvasive therapy?
A) Administer the treatment with the patient in a high Fowlers or semi-Fowlers position.
B) Perform the procedure immediately following the patients meals.
C) Apply percussion firmly to bare skin to facilitate drainage.
D) Assist the patient into a position that will allow gravity to move secretions.
Ans: D
Feedback:
Postural drainage is usually performed two to four times per day. The patient uses gravity to facilitate postural draining. The skin should be covered with a cloth or a towel during percussion to protect the skin. Postural drainage is not administered in an upright position or directly following a meal.
The critical care nurse is precepting a new nurse on the unit. Together they are caring for a patient who has a tracheostomy tube and is receiving mechanical ventilation. What action should the critical care nurse recommend when caring for the cuff?
A) Deflate the cuff overnight to prevent tracheal tissue trauma.
B) Inflate the cuff to the highest possible pressure in order to prevent aspiration.
C) Monitor the pressure in the cuff at least every 8 hours
D) Keep the tracheostomy tube plugged at all times.
Ans: C
Feedback:
Cuff pressure must be monitored by the respiratory therapist or nurse at least every 8 hours by attaching a handheld pressure gauge to the pilot balloon of the tube or by using the minimal leak volume or minimal occlusion volume technique. Plugging is only used when weaning the patient from tracheal support. Deflating the cuff overnight would be unsafe and inappropriate. High cuff pressure can cause tissue trauma.
The acute medical nurse is preparing to wean a patient from the ventilator. Which assessment parameter is most important for the nurse to assess?
A) Fluid intake for the last 24 hours
B) Baseline arterial blood gas (ABG) levels
C) Prior outcomes of weaning
D) Electrocardiogram (ECG) results
Ans: B
Feedback:
Before weaning a patient from mechanical ventilation, it is most important to have baseline ABG levels. During the weaning process, ABG levels will be checked to assess how the patient is tolerating the procedure. Other assessment parameters are relevant, but less critical. Measuring fluid volume intake and output is always important when a patient is being mechanically ventilated. Prior attempts at weaning and ECG results are documented on the patients record, and the nurse can refer to them before the weaning process begins.
While assessing the patient, the nurse observes constant bubbling in the water-seal chamber of the patients closed chest-drainage system. What should the nurse conclude? A) The system is functioning normally. B) The patient has a pneumothorax. C) The system has an air leak. D) The chest tube is obstructed.
Ans: C
Feedback:
Constant bubbling in the chamber often indicates an air leak and requires immediate assessment and intervention. The patient with a pneumothorax will have intermittent bubbling in the water-seal chamber. If the tube is obstructed, the nurse should notice that the fluid has stopped fluctuating in the water-seal chamber.
A patient recovering from thoracic surgery is on long-term mechanical ventilation and becomes very frustrated when he tries to communicate. What intervention should the nurse perform to assist the patient?
A) Assure the patient that everything will be all right and that remaining calm is the best strategy.
B) Ask a family member to interpret what the patient is trying to communicate.
C) Ask the physician to wean the patient off the mechanical ventilator to allow the patient to speak freely.
D) Express empathy and then encourage the patient to write, use a picture board, or spell words with an alphabet board.
Ans: D
Feedback:
If the patient uses an alternative method of communication, he will feel in better control and likely be less frustrated. Assuring the patient that everything will be all right offers false reassurance, and telling him not to be upset minimizes his feelings. Neither of these methods helps the patient to communicate. In a patient with an endotracheal or tracheostomy tube, the family members are also likely to encounter difficulty interpreting the patients wishes. Making them responsible for interpreting the patients gestures may frustrate the family. The patient may be weaned off a mechanical ventilator only when the physiologic parameters for weaning have been met.
The physician has ordered continuous positive airway pressure (CPAP) with the delivery of a patients high-flow oxygen therapy. The patient asks the nurse what the benefit of CPAP is. What would be the nurses best response?
A) CPAP allows a higher percentage of oxygen to be safely used.
B) CPAP allows a lower percentage of oxygen to be used with a similar effect.
C) CPAP allows for greater humidification of the oxygen that is administered.
D) CPAP allows for the elimination of bacterial growth in oxygen delivery systems.
Ans: B
Feedback:
Prevention of oxygen toxicity is achieved by using oxygen only as prescribed. Often, positive end- expiratory pressure (PEEP) or CPAP is used with oxygen therapy to reverse or prevent microatelectasis, thus allowing a lower percentage of oxygen to be used. Oxygen is moistened by passing through a humidification system. Changing the tubing on the oxygen therapy equipment is the best technique for controlling bacterial growth.
The home care nurse is assessing a patient who requires home oxygen therapy. What criterion indicates that an oxygen concentrator will best meet the needs of the patient in the home environment?
A) The patient desires a low-maintenance oxygen delivery system that delivers oxygen flow rates up to 6 L/min.
B) The patient requires a high-flow system for use with a tracheostomy collar.
C) The patient desires a portable oxygen delivery system that can deliver 2 L/min.
D) The patients respiratory status requires a system that provides an FiO2 of 65%.
Ans: C
Feedback:
The use of oxygen concentrators is another means of providing varying amounts of oxygen, especially in the home setting. They can deliver oxygen flows from 1 to 10 L/min and provide an FiO2 of about 40%. They require regular maintenance and are not used for high-flow applications. The patient desiring a portable oxygen delivery system of 2L/min will benefit from the use of an oxygen concentrator.
While caring for a patient with an endotracheal tube, the nurses recognizes that suctioning is required how often?
A) Every 2 hours when the patient is awake
B) When adventitious breath sounds are auscultated
C) When there is a need to prevent the patient from coughing
D) When the nurse needs to stimulate the cough reflex
Ans: B
Feedback:
It is usually necessary to suction the patients secretions because of the decreased effectiveness of the cough mechanism. Tracheal suctioning is performed when adventitious breath sounds are detected or whenever secretions are present. Unnecessary suctioning, such as scheduling every 2 hours, can initiate bronchospasm and cause trauma to the tracheal mucosa.
The nurse is caring for a patient who is ready to be weaned from the ventilator. In preparing to assist in the collaborative process of weaning the patient from a ventilator, the nurse is aware that the weaning of the patient will progress in what order?
A) Removal from the ventilator, tube, and then oxygen
B) Removal from oxygen, ventilator, and then tube
C) Removal of the tube, oxygen, and then ventilator
D) Removal from oxygen, tube, and then ventilator
Ans: A
Feedback:
The process of withdrawing the patient from dependence on the ventilator takes place in three stages: the patient is gradually removed from the ventilator, then from the tube, and, finally, oxygen.
The nurse has admitted a patient who is scheduled for a thoracic resection. The nurse is providing preoperative teaching and is discussing several diagnostic studies that will be required prior to surgery. Which study will be performed to determine whether the planned resection will leave sufficient functioning lung tissue? A) Pulmonary function studies B) Exercise tolerance tests C) Arterial blood gas values D) Chest x-ray
Ans: A
Feedback:
Pulmonary function studies are performed to determine whether the planned resection will leave sufficient functioning lung tissue. ABG values are assessed to provide a more complete picture of the functional capacity of the lung. Exercise tolerance tests are useful to determine if the patient who is a candidate for pneumonectomy can tolerate removal of one of the lungs. Preoperative studies, such as a chest x-ray, are performed to provide a baseline for comparison during the postoperative period and to detect any unsuspected abnormalities.
The nurse is discussing activity management with a patient who is postoperative following thoracotomy. What instructions should the nurse give to the patient regarding activity immediately following discharge?
A) Walk 1 mile 3 to 4 times a week.
B) Use weights daily to increase arm strength.
C) Walk on a treadmill 30 minutes daily.
D) Perform shoulder exercises five times daily.
Ans: D
Feedback:
The nurse emphasizes the importance of progressively increased activity. The nurse also instructs the patient on the importance of performing shoulder exercises five times daily. The patient should ambulate with limits and realize that the return of strength will likely be gradual and likely will not include weight lifting or lengthy walks.
A patient with a severe exacerbation of COPD requires reliable and precise oxygen delivery. Which mask will the nurse expect the physician to order? A) Non-rebreather air mask B) Tracheostomy collar C) Venturi mask D) Face tent
Ans: C
Feedback:
The Venturi mask provides the most accurate method of oxygen delivery. Other methods of oxygen delivery include the aerosol mask, tracheostomy collar, and face tents, but these do not match the precision of a Venturi mask.
The nurse is caring for a patient who is experiencing mild shortness of breath during the immediate postoperative period, with oxygen saturation readings between 89% and 91%. What method of oxygen delivery is most appropriate for the patients needs? A) Non-rebreathing mask B) Nasal cannula C) Simple mask D) Partial-rebreathing mask
Ans: B
Feedback:
A nasal cannula is used when the patient requires a low to medium concentration of oxygen for which precise accuracy is not essential. The Venturi mask is used primarily for patients with COPD because it can accurately provide an appropriate level of supplemental oxygen, thus avoiding the risk of suppressing the hypoxic drive. The patients respiratory status does not require a partial- or non- rebreathing mask.
A critical care nurse is caring for a client with an endotracheal tube who is on a ventilator. The nurse knows that meticulous airway management of this patient is necessary. What is the main rationale for this?
A) Maintaining a patent airway
B) Preventing the need for suctioning
C) Maintaining the sterility of the patients airway
D) Increasing the patients lung compliance
Ans: A
Feedback:
Maintaining a patent (open) airway is achieved through meticulous airway management, whether in an emergency situation such as airway obstruction or in long-term management, as in caring for a patient with an endotracheal or a tracheostomy tube. The other answers are incorrect.
The nurse is preparing to suction a patient with an endotracheal tube. What should be the nurses first step in the suctioning process?
A) Explain the suctioning procedure to the patient and reposition the patient.
B) Turn on suction source at a pressure not exceeding 120 mm Hg.
C) Assess the patients lung sounds and SAO2 via pulse oximeter.
D) Perform hand hygiene and don nonsterile gloves, goggles, gown, and mask.
Ans: C
Feedback:
Assessment data indicate the need for suctioning and allow the nurse to monitor the effect of suction on the patients level of oxygenation. Explaining the procedure would be the second step; performing hand hygiene is the third step, and turning on the suction source is the fourth step.
The critical care nurse and the other members of the care team are assessing the patient to see if he is ready to be weaned from the ventilator. What are the most important predictors of successful weaning that the nurse should identify?
A) Stable vital signs and ABGs
B) Pulse oximetry above 80% and stable vital signs
C) Stable nutritional status and ABGs
D) Normal orientation and level of consciousness
Ans: A
Feedback:
Among many other predictors, stable vital signs and ABGs are important predictors of successful weaning. Pulse oximetry must greatly exceed 80%. Nutritional status is important, but vital signs and ABGs are even more significant. Patients who are weaned may or may not have full level of consciousness.
The OR nurse is setting up a water-seal chest drainage system for a patient who has just had a thoracotomy. The nurse knows that the amount of suction in the system is determined by the water level. At what suction level should the nurse set the system? A) 20 cm H2O B) 15 cm H2O C) 10 cm H2O D) 5cmH2O
Ans: A Feedback:
The amount of suction is determined by the water level. It is usually set at 20 cm H2O; adding more fluid results in more suction.