Why does PCO2 (partial carbon dioxide) decrease during hyperventilation?!


Question:

Why does PCO2 (partial carbon dioxide) decrease during hyperventilation?


Answers:

The partial pressure of CO2 decreases during hyperventilation because you are exhaling all of it. That's why - to treat hyperventilation - we make someone breathe into a paper bag. This causes them to rebreathe the CO2 so levels go back up.




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