CCNS Certified Clinical Nurse Specialist

Category - Adult

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A patient with pulmonary edema is receiving mechanical ventilation with positive end-expiratory pressure (PEEP). The patient’s relative asks the nurse about the rationale for using a PEEP. The nurse should indicate that the major purpose is that it:

Improves areas available for gas exchange
Increases pulmonary capillary pressure
Permits the patient to obtain rest
Increase the patient’s carbon dioxide

Explanation

Answer - A - The nurse should indicate that the major purpose is that it improves areas available for gas exchange. PEEP helps keep the alveoli expanded, increasing the area available for gas exchange, thus improving oxygenation.

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