Plateau pressure may be obtained during volume ventilation by using which of the following?
a. Expiratory pause c. End-expiratory pressure
b. Inspiratory pause d. Increased inspira-tory time
ANS: B
During volume ventilation, plateau pressure is obtained by using the maneuver that extends or delays exhalation by keeping the expiratory valve momentarily closed. This prevents the gas from leaving the circuit. The maneuver is known as an inspiratory pause, inspiratory hold, or inspirato-ry plateau.
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