Which of the following patients are at greatest risk for developing auto-PEEP during mechanical ventilation?
a. Those with acute lung injury
b. Those with COPD
c. Those with congestive heart failure
d. Those with bilateral pneumonia
ANS: B
These patients frequently have problems with elevated airway pressure or dynamic hyperinflation (auto-PEEP), which can cause barotrauma and increased dyssynchrony between the patient and the ventilator.
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