A Patient with Acute Respiratory Failure Is Receiving Assist-Control Mechanical

A patient with acute respiratory failure is receiving assist-control mechanical ventilation with peak end-expiratory pressure (PEEP) of 10 cm H₂O and has an arterial line and pulmonary artery catheter in place. Which information indicates that a change in the ventilator settings may be required?

A) The pulmonary artery pressure (PAP) is decreased.
B) The arterial line shows a blood pressure of 90/46.
C) The pulmonary artery wedge pressure (PAWP) is increased.
D) The cardiac monitor shows a heart rate of 58 beats/min.

Correct Answer:

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