A 28 year-old female has just been admitted through the ED with suspected CO poisoning. She is receiving oxygen by non-rebreather mask at 10 L/min. Upon entering the patient's room, the respiratory therapist notes that the reservoir bag of the mask collapses during inspiration. This is most likely the result of
A. faulty one-way valves.
B. tight seal between the mask and the patient's face.
C. presence of a bubble humidifier.
D. insufficient flow to the reservoir bag.
Answer: D. insufficient flow to the reservoir bag.
Health Professions
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