A Patient Receiving 35% O₂ Through an Air-Entrainment Mask Set

question 52

Multiple Choice

A patient receiving 35% O₂ through an air-entrainment mask set at 6 L/min input flow becomes tachypneic. Simultaneously, you notice that the SpO₂ has fallen from 91% to 87%. Which of the following actions would be most appropriate in this situation?

• A)Switch the patient to a 40% air-entrainment mask.
• B)Increase the device's input flow to 10 L/min.
• C)Switch the patient to a 28% air-entrainment mask.
• D)Decrease the device's input flow to 4 L/min.

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