What is the tidal volume for PBW 73 kg at 6 mL/kg?

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Multiple Choice

What is the tidal volume for PBW 73 kg at 6 mL/kg?

Tidal volume is chosen from predicted body weight, not actual weight, using a typical protective-ventilation value of 6 mL per kilogram. Multiply the PBW by 6: 73 kg × 6 mL/kg = 438 mL. That makes 438 mL the correct amount for this PBW. The other numbers would correspond to slightly different PBW values (for example, 70 kg would give 420 mL, 75 kg would give 450 mL), but with a PBW of 73 kg, 438 mL is the right calculation.

Tidal volume is chosen from predicted body weight, not actual weight, using a typical protective-ventilation value of 6 mL per kilogram. Multiply the PBW by 6: 73 kg × 6 mL/kg = 438 mL. That makes 438 mL the correct amount for this PBW. The other numbers would correspond to slightly different PBW values (for example, 70 kg would give 420 mL, 75 kg would give 450 mL), but with a PBW of 73 kg, 438 mL is the right calculation.

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