Which of the following is the recommended tidal volume for mechanical ventilation in a patient with ARDS who is in acute respiratory failure?

a. 4 to 8 ml/kg
b. 3 to 5 ml/kg
c. 6 to 10 ml/kg
d. 10 to 12 ml/kg

ANS: A
The currently accepted tidal volume for mechanical ventilation in acute respiratory failure is 4 to 8 ml/kg for patients with acute respiratory distress syndrome (ARDS).