A well-fitted nonrebreathing mask, adjusted so that the patient's inhalation does not deflate the bag (flows between 6 and 10 L/min) , should provide inspired O2 concentrations in what range?
A) 55% to 70%
B) 45% to 60%
C) 75% to 90%
D) 70% to 85%
Correct Answer:
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