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Author Question: Strategies to reduce auto-PEEP in mechanically ventilated patients with obstructive lung disease ... (Read 89 times)

newbem

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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

Question 2

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



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shaquita

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Answer to Question 1

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.

Answer to Question 2

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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