In theory, a nasal cannula can deliver what amount of FIO2 to a patient?
a. 0.24 to 0.60 c. 0.24 to 1.00
b. 0.24 to 0.36 d. 0.24 to 0.44
ANS: D
The FIO2 levels delivered by a nasal cannula vary with the flow rate setting. Generally, the FIO2 increases by about 4% for each liter of flow increase beginning with 1 L/min delivering approxi-mately 24% oxygen.
Health Professions
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