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A Comprehensive Educational Website (established 1998)

Designed, Produced, and maintained (Edition 12, 2022) by 

Bhavani Shankar Kodali MD

Updated September 2022

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Laila SamyMontrealThank you for this website.
I would like if you could explain to me why you say the PETCO2 will increase with hypoventilation and decrease with hyperventilation. I thought that hypoventilation will increase your dead space, increasing your PaCO2 and decreasing the PETCO2.