During pressure-controlled continuous mandatory ventilation, when the patient's lung compliance increases, which of the following will occur?
a. The tidal volume will increase.
b. The FRC will increase.
c. The peak airway pressure will increase.
d. The inspiratory time will decrease.
ANS: A
During pressure-controlled continuous mandatory ventilation, the pressure delivered is constant. In lung mechanics, pressure = tidal volume/lung compliance. Since pressure is constant when lung compliance increases the tidal volume also increases.
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