What is the respiratory therapist observing if monitoring the total amount of gas exhaled in 60 seconds after excluding dead space?

A. dead space ventilation
B. maximum voluntary ventilation
C. alveolar minute ventilation
D. minute ventilation

Answer: C. alveolar minute ventilation
Explanation :
Examining the breathing rate over a period of 60 seconds and multiplying it times the tidal volume gives you minute ventilation. If deadspace is subtracted from that volume then what is being observed is alveolar minute ventilation.

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