What is the percentage of FɪO₂ for a patient on 3 L/min delivered through a nasal cannula?

Name: What is the percentage of FɪO₂ for a patient on 3 L/min delivered through a nasal cannula?
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Question

Quizplus · Accepted Answer

3 L/min * 4 = 12 L/min + 20 = 32% FɪO₂.The flow is multiplied by 4 because for every 1 L/min of oxygen flowing to a nasal cannula the FɪO₂ increases by 4%.The 20 is the number that the flow multiplied by 4 is added to,in order to get the approximate FɪO₂.

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