If the base flow is 10 L/min and the flow-trigger setting is 4 L/min, the flow during the expira-tory phase is _____ L/min
a. 4 c. 10
b. 6 d. 14
ANS: C
The base flow is the bias or background flow that is present during the expiratory phase. That flow is the set base flow, or 10 L/min in this case.
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