2 doctors weighed in:

What happens to the partial pressure of carbon dioxide during rapid breathing?

2 doctors weighed in
Dr. Benjamin Nguyen
Anesthesiology
1 doctor agrees

In brief: It is decreased

Pco2 decreases with hyperventilation because carbon dioxide is a waste product produced by the body as a result of aerobic metabolism. If activity increases, metabolism increases and thus carbon dioxide increase, so we naturally breathe faster. If one hyperventilates more than the increase in metabolism, then level of carbon dioxide with be reduced, because it is being eliminated by exhalation.

In brief: It is decreased

Pco2 decreases with hyperventilation because carbon dioxide is a waste product produced by the body as a result of aerobic metabolism. If activity increases, metabolism increases and thus carbon dioxide increase, so we naturally breathe faster. If one hyperventilates more than the increase in metabolism, then level of carbon dioxide with be reduced, because it is being eliminated by exhalation.
Dr. Benjamin Nguyen
Dr. Benjamin Nguyen
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