A Patient Receiving Continuous Mandatory Ventilation in the Assist-Control Mode

A patient receiving continuous mandatory ventilation in the assist-control mode develops auto-PEEP. Which of the following changes in ventilatory patterns would you consider to minimize the effects of auto-PEEP in this patient?
1) Decreasing the rate or increasing V_T
2) Using low-rate synchronized intermittent mandatory ventilation
3) Decreasing the peak inspiratory flow
4) Lowering the V_T and letting the PaCO₂ rise

A) 2 and 4 only
B) 3 and 4 only
C) 1, 2, and 3 only
D) 1, 2, and 4 only

Correct Answer:

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