Respiratory Conditions · USMLE Step 1

A patient with severe ARDS requires mechanical ventilation. Which strategy reduces ventilator-associated lung injury?

  1. High tidal volume ventilation
  2. Low tidal volume ventilation
  3. High FiO₂ ventilation
  4. Zero PEEP
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Correct answer: Low tidal volume ventilation

Low tidal volume ventilation reduces overdistension of alveoli and prevents ventilator-associated lung injury in ARDS.

Difficulty: Medium Question 18 of 20

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