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. Pneumothorax: A pneumothorax occurs when air accumulates in the pleural space, causing the lung to collapse. It often presents with unilateral chest pain, dyspnea, and diminished or absent breath sounds on the affected side.
B. Atelectasis: Atelectasis refers to the collapse of alveoli in the lungs, often caused by obstruction, compression, or lack of surfactant. Symptoms include hypoxemia, diminished breath sounds, and shortness of breath.
C. Hemothorax: A hemothorax occurs when blood accumulates in the pleural space. It typically presents with chest pain, dyspnea, and diminished or absent breath sounds on the affected side.
D. Flail Chest: Flail chest results from multiple rib fractures that create a free-floating segment of the chest wall. This condition causes paradoxical chest movement, where the chest wall segment moves inward during inspiration and outward during expiration.
Correct Answer is C
Explanation
A. The AP’s rapport with clients:
While a positive rapport with clients is valuable, it is not a direct factor in determining whether an AP is suitable for a specific task based on the five rights of delegation.
B. The AP’s ability to complete the task without assistance:
The ability to complete a task without assistance is relevant but does not guarantee that the AP has the necessary knowledge and skill for the task. The focus should be on competence rather than independence.
C. The AP has the knowledge and skill to perform the task
When considering the five rights of delegation, one of the crucial factors is ensuring that the assistive personnel (AP) has the knowledge and skill necessary to perform the delegated task safely and effectively. Delegated tasks should align with the AP's competence and training to maintain the safety and well-being of the client.
D. The AP’s ability to prioritize:
Prioritization skills are important for healthcare providers, but the focus of delegation, as per the five rights, is on the AP's competence to perform the specific task.
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