With a tidal volume of 6 mL/kg and a predicted body weight of 60 kg, what is the tidal volume?

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Multiple Choice

With a tidal volume of 6 mL/kg and a predicted body weight of 60 kg, what is the tidal volume?

Tidal volume is calculated by multiplying the per‑kg target by the predicted body weight. With a target of 6 mL per kg and a predicted body weight of 60 kg, you get 6 × 60 = 360 mL. In practice, tidal volume is set using predicted body weight to reflect lung size rather than actual weight. The other numbers would correspond to different mL/kg targets (7 mL/kg gives 420 mL, 5 mL/kg gives 300 mL, 4 mL/kg gives 240 mL), which don’t match the given 6 mL/kg. So the tidal volume is 360 mL.

Tidal volume is calculated by multiplying the per‑kg target by the predicted body weight. With a target of 6 mL per kg and a predicted body weight of 60 kg, you get 6 × 60 = 360 mL. In practice, tidal volume is set using predicted body weight to reflect lung size rather than actual weight. The other numbers would correspond to different mL/kg targets (7 mL/kg gives 420 mL, 5 mL/kg gives 300 mL, 4 mL/kg gives 240 mL), which don’t match the given 6 mL/kg. So the tidal volume is 360 mL.

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