What is the tidal volume (VT) in mL for a female patient with PBW 52.4 kg at 6 mL/kg?

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Multiple Choice

What is the tidal volume (VT) in mL for a female patient with PBW 52.4 kg at 6 mL/kg?

Tidal volume is calculated using predicted body weight (PBW) rather than actual weight, with a lung-protective target of about 6 mL per kilogram of PBW. With a PBW of 52.4 kg, VT = 52.4 × 6 = 314.4 mL, which rounds to 315 mL. This sits in the typical 4–8 mL/kg PBW range and reflects the amount of air that keeps the ventilated lungs at a safer volume without overdistension. So the resulting tidal volume is about 315 mL.

Tidal volume is calculated using predicted body weight (PBW) rather than actual weight, with a lung-protective target of about 6 mL per kilogram of PBW. With a PBW of 52.4 kg, VT = 52.4 × 6 = 314.4 mL, which rounds to 315 mL. This sits in the typical 4–8 mL/kg PBW range and reflects the amount of air that keeps the ventilated lungs at a safer volume without overdistension. So the resulting tidal volume is about 315 mL.

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