What is the maximum tidal volume available for a time-triggered, pressure-limited, time-cycled infant ventilator with the flow rate set at 6 L/min and the inspiratory time at 0.6 second?
a. 13 mL c. 53 mL
b. 36 mL d. 60 mL
ANS: D
Tidal volume (liters) = [Inspiratory time (seconds) ? Flow (L/min)] ÷ 60 = [0.6 ? 6] ÷ 60 = 0.6 L, or 60 mL.
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