The pressure-time scalar shown in the figure represents which of the following?
a. Airway pressure release ventilation (APRV)
b. Volume-controlled intermittent ventilation (VC-IMV) with positive end-expiratory pressure (PEEP)
c. Pressure-controlled intermittent mandato-ry ventilation (PC-IMV) with positive end-expiratory pressure (PEEP)
d. Bilevel positive airway pressure
ANS: C
The figure shows two levels of pressure-control ventilation. The higher level, around 22 cm H2O is the mandatory ventilator breaths. The lower level shows spontaneous breaths with a pressure support of approximately 15 cm H2O. Baseline (PEEP) is at 5 cm H2O.
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