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 ["1170"]
Explanation
To calculate the total fluid intake for a client during a 4-hour period, the nurse should convert all the measurements to milliliters (mL) and add them together. One cup is equal to 240 mL, one ounce is equal to 30 mL, and one teaspoon is equal to 5 mL. Therefore, the client consumes:
- 1 cup of coffee = 240 mL
- 4 oz of orange juice = 120 mL
- 3 oz of water = 90 mL
- 1 cup of flavored gelatin = 240 mL
- 1 cup of tea = 240 mL
- 5 oz of broth = 150 mL
- 3 oz of water = 90 mL
The total fluid intake is:
240 + 120 + 90 + 240 + 240 + 150 + 90 = 1170 mL
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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