A normal 150-lb man is breathing at a rate of 17 with a tidal volume of 450 ml. By estimation, what is his approximate alveolar ventilation?

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Quizplus · Accepted Answer

V_Danat averages approximately 1 ml/lb of ideal body weight (2.2 ml/kg). For a subject who weighs 150 lb (68 kg), V_Danat is approximately 150 ml. For our patient the V_T is 450, the RR is 17, and we will say his actual weight is his ideal body weight so 150-lb = 150 ml V_D.

A Normal 150-Lb Man Is Breathing at a Rate of 17