During HFOV, oxygenation can be improved by making which of the following changes? 1. Increasing the FIO2 2. Decreasing the amplitude 3. Increasing the MAP 4. Increasing the frequency
a. 1 and 2
b. 1 and 3
c. 2 and 3
d. 2 and 4
ANS: B
The MAP and FIO2 controls are used to control the patient's oxygenation. The amplitude and frequency are used to control the patient's ventilatory status.
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