Strategies to reduce auto-PEEP in mechanically ventilated patients with obstructive lung disease include which of the following?
1. Use high inspiratory flows (60 to 100 L/min).
2. Apply extrinsic PEEP.
3. Use low VT values (8 to 10 ml/kg).
4. Use high respiratory rates (>25/min).
a. 1 and 3 only
b. 1, 2, and 3 only
c. 3 and 4 only
d. 2, 3, and 4 only
ANS: B
In such patients, lower tidal volumes (6 to 8 ml/kg), moderate respiratory rates, and high inspira-tory flow rates (70 to 100 L/min) are recommended to avoid dynamic hyperinflation.
Health Professions
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