A student is caring for a patient with positive end-expiratory pressure (PEEP) at 5 cm H20. The student asks “What is the purpose of PEEP?” which of the following is an appropriate response by the nurse?
PEEP deceases the peak respiratory pressures
“PEEP increases the number of breaths the patient takes on his own.”
“PEEP augments the patient’s overall tidal volumes.”
“PEEP improves oxygenation by keeping alveoli open after exhalation.”
The Correct Answer is D
A. PEEP decreases the peak respiratory pressures:
PEEP may increase peak respiratory pressures, especially during inspiration, but its primary purpose is to prevent alveolar collapse and improve oxygenation.
B. “PEEP increases the number of breaths the patient takes on his own.”:
PEEP does not increase the number of breaths the patient takes. It primarily affects the quality of ventilation by preventing alveolar collapse.
C. “PEEP augments the patient’s overall tidal volumes.”:
PEEP does not necessarily increase overall tidal volumes. It focuses on maintaining positive pressure at the end of expiration to prevent alveolar collapse.
D. “PEEP improves oxygenation by keeping alveoli open after exhalation.”
Positive end-expiratory pressure (PEEP) is used in mechanical ventilation to maintain positive pressure in the airways and alveoli at the end of the respiratory cycle (expiration). This helps prevent alveolar collapse and improves oxygenation by keeping the alveoli open, particularly in patients with conditions like acute respiratory distress syndrome (ARDS). PEEP is commonly used to increase functional residual capacity (FRC) and improve oxygenation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. PEEP decreases the peak respiratory pressures:
PEEP may increase peak respiratory pressures, especially during inspiration, but its primary purpose is to prevent alveolar collapse and improve oxygenation.
B. “PEEP increases the number of breaths the patient takes on his own.”:
PEEP does not increase the number of breaths the patient takes. It primarily affects the quality of ventilation by preventing alveolar collapse.
C. “PEEP augments the patient’s overall tidal volumes.”:
PEEP does not necessarily increase overall tidal volumes. It focuses on maintaining positive pressure at the end of expiration to prevent alveolar collapse.
D. “PEEP improves oxygenation by keeping alveoli open after exhalation.”
Positive end-expiratory pressure (PEEP) is used in mechanical ventilation to maintain positive pressure in the airways and alveoli at the end of the respiratory cycle (expiration). This helps prevent alveolar collapse and improves oxygenation by keeping the alveoli open, particularly in patients with conditions like acute respiratory distress syndrome (ARDS). PEEP is commonly used to increase functional residual capacity (FRC) and improve oxygenation.
Correct Answer is B
Explanation
A. “Check your oxygen equipment once each week.”
Checking the oxygen equipment once a week is insufficient. The equipment should be regularly inspected for safety, including tubing, connections, and the condition of the oxygen concentrator or tank.
B. “Do not adjust the oxygen flow rate.”
The nurse should include in the teaching that the client should not adjust the oxygen flow rate without consulting their healthcare provider. Adjusting the oxygen flow rate without proper guidance can lead to inappropriate oxygen delivery, which may be harmful.
C. “Store unused oxygen tanks horizontally.”
Oxygen tanks should be stored in an upright position to prevent damage to the tank valve. Storing them horizontally can increase the risk of leaks or damage.
D. “Keep wool blankets on your bed.”
Wool blankets and other items that generate static electricity should be avoided near oxygen equipment, as they can increase the risk of fire. The client should be advised to use non-static bedding and clothing.
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