Discuss the regulation of body potassium by the kidney.

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College Answer

A number of candidates discussed the distribution of potassium in the body and its role in
membrane potentials. This was not asked for. Common omissions were a lack of comment on
glomerular filtration, a lack of detail regards mechanisms of potassium transport in various parts of
the glomeruli and failing to discuss control mechanisms other than aldosterone.
Syllabus: E1,2b, D1,2f
References: Guyton and Hall Textbook of Medical Physiology, Chp 29