Tidal volume for PBW 61.6 kg at 6 mL/kg?

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Tidal volume for PBW 61.6 kg at 6 mL/kg?

Tidal volume is set by multiplying predicted body weight by the specified mL per kilogram. This uses PBW because lung size correlates with height and sex, not actual body weight. With a PBW of 61.6 kg and a target of 6 mL per kg, you compute 61.6 × 6 = 369.6 mL per breath. Rounding to the nearest whole number gives about 370 mL. So the tidal volume per breath would be approximately 370 mL. This fits the lung-protective approach of around 6 mL/kg PBW to reduce volutrauma. The other options are off by about 9–20 mL from the calculated value.

Tidal volume is set by multiplying predicted body weight by the specified mL per kilogram. This uses PBW because lung size correlates with height and sex, not actual body weight.

With a PBW of 61.6 kg and a target of 6 mL per kg, you compute 61.6 × 6 = 369.6 mL per breath. Rounding to the nearest whole number gives about 370 mL.

So the tidal volume per breath would be approximately 370 mL. This fits the lung-protective approach of around 6 mL/kg PBW to reduce volutrauma. The other options are off by about 9–20 mL from the calculated value.

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