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Physiology General ddef805b

In high potassium serum levels, kidney compensation occurs by?

A
Decreased reabsorption in PCT
B
Increased secretion in PCT
C
Increased secretion in DCT
D
Decreased reabsorption in loop of Henle
High-Yield Explanation
Ans. is'c'i.e., Increased secretion in DCT[Ref: Guyton & hall p. 201Potassium transpo:Potassium is one of the few substances that are both reabsorbed as well as secreted by the renal tubules.The reabsorption of about two-thirds of the filtered K+ occurs in the proximal tubulesK+ reabsorption as weII as secretion takes place.Here also, reabsorption of K+ occurs independent of K+ status of the body.It is the secretory process that K+ regulated by aldosterone in response to the K+ and Na+ status of body.

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