A HAFOE (high air flow with oxygen enrichment) mask is set at 40%, and the oxygen flowmeter is running at 6 L/min. What is the total flow to the patient?

Question

Quizplus · Accepted Answer

The total flow to the patient would be calculated by adding the oxygen flowmeter rate (6 L/min) to the high air flow rate (40% of the total flow). If the total flow rate is not given, we assume it is 10 L/min for an HAFOE mask. Therefore, 40% of 10 L/min is 4 L/min, so the total flow to the patient would be 6 L/min + 4 L/min = 10 L/min. Therefore, the correct answer is C) 24 L/min, since the total flow rate for an HAFOE mask is typically 15 L/min, and 40% of 15 L/min is 6 L/min. Adding these two together, the total flow to the patient would be 6 L/min + 15 L/min = 21 L/min. However, since the closest answer choice is 24 L/min, that is the best option.

A HAFOE (High Air Flow with Oxygen Enrichment) Mask Is