During time-cycled, pressure-controlled ventilation, which of the following must be known to calculate tidal volume?
I. flow
II. pressure
III. inspiratory time
IV. PEEP/CPAP

Question

Quizplus · Accepted Answer

To calculate tidal volume during time-cycled, pressure-controlled ventilation, one must know the flow rate (I) and inspiratory time (III). PEEP/CPAP (IV) is not necessary for this calculation, and pressure (II) alone is not enough information to calculate tidal volume.

During Time-Cycled, Pressure-Controlled Ventilation, Which of the Following Must Be