What is the current definition of weaning success as it pertains to PMV patients?
A. the ultimate removal of the endotracheal or tracheostomy tube
B. applying short periods of mechanical ventilation after 2 days of spontaneous breathing
C. No definition of successful weaning has been formulated for this patient group.
D. complete removal from ventilation for 7 consecutive days
ANS: D
A. Incorrect response: See explanation D.
B. Incorrect response: See explanation D.
C. Incorrect response: See explanation D.
D. Correct response: Weaning success is relatively easy to define in the acute ICU setting because it is marked by the successful removal of an ETT. However, for PMV patients who are ventilated via a tracheostomy, weaning success is less clear because the PMV weaning process can require short periods of ventilation after 2- to 3-day periods of spontaneous breathing before a patient is completely liberated from mechanical ventilatory support. Currently the recommended definition of PMV weaning success is complete removal from ventilation for 7 consecutive days. ?
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