Airway & Ventilation第 3 / 100 题
A nonrebreather mask should generally be run at what oxygen flow rate?
a.2 to 4 L/min
b.4 to 6 L/min
c.10 to 15 L/min
d.1 to 2 L/min
解析
A nonrebreather mask requires 10 to 15 L/min to keep the reservoir bag inflated and deliver a high oxygen concentration (roughly 80 to 90 percent). Lower flow rates fail to keep the reservoir filled between breaths.
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