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Goljan: "In cyanide poisoning, the venous O2 content is greater than the arterial O2 content, because there is no extraction of O2 by the tissue. In addition, the MVO2 content is essentially the same as the O2 content of arterial blood, because no O2 was extracted from the venous blood."
How can venous O2 content ever be higher than arterial O2 content, if venous blood comes from arteries? And does MVO2 content refer to "mixed venous O2 content" here? And how would that be equal to arterial O2 content if venous O2 content is greater than arterial O2 content? Wouldn't that mean that MVO2 content and venous O2 content are different things?
Edit:
Later on it says that PvO2 and venous O2 content are higher than normal, while MVO2 content equals arterial O2 content. Guess "venous O2 content > arterial O2 content" was a typo.
How can venous O2 content ever be higher than arterial O2 content, if venous blood comes from arteries? And does MVO2 content refer to "mixed venous O2 content" here? And how would that be equal to arterial O2 content if venous O2 content is greater than arterial O2 content? Wouldn't that mean that MVO2 content and venous O2 content are different things?
Edit:
Later on it says that PvO2 and venous O2 content are higher than normal, while MVO2 content equals arterial O2 content. Guess "venous O2 content > arterial O2 content" was a typo.
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