USMLE Forums - View Single Post - Renal Venous versus Medullary Oxygen Content!
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Old 07-15-2010
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Originally Posted by Androide89 View Post
hmn i dont get exactly what you're saying =D but yeah i still dont get this one =/ I know during shock the kidneys are hit hardest (ATN) so extraction of arterial o2 would be high and venous o2 would be low but i thought during normal state renal venous o2 is the highest of all venous blood and cardiac coronary sinus the lowest of all.
yes also cardiac coronary veins has to have low PO2 because a lot of O2 is extracted in the coronary capillaries to supply O2 to the cardiac muscle. which can be understood when we are exercising, our venous PO2 becomes lower than usual because extraction of O2 at the capillaries increase.

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