The physician has ordered continuous positive airway pressure (CPAP) with the delivery of a patient's high-flow oxygen therapy. The patient asks the nurse what the benefit of CPAP is. What would be the nurse's 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.
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