Which of the following influences the FIO2 delivered to the patient by nasal cannula? 1. Work of breathing 2. Tidal volume 3. Respiratory rate 4. Humidification

a. 4 c. 1 and 3
b. 1, 2, and 3 d. 1, 2, 3, and 4


ANS: B
All physiologic aspects play a role in the amount of FIO2 delivered to a patient regardless of whether breathing is predominantly occurring through the nose or the mouth.

Health Professions

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