Which of the following would decrease PaCO2 when ventilating a patient using intermittent mandatory ventilation with pressure support?
a. Increase the level of pressure support.
b. Decrease the tidal volume.
c. Decrease the mechanical rate.
d. Increase the FiO2.
ANS: A
The PaCO2 can be decreased by increasing tidal volume, increasing PSV for spontaneous breaths, or increasing the machine rate.
Health Professions
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