Which factors decrease potassium excretion?

Updated: Dec 06, 2018
  • Author: Eleanor Lederer, MD, FASN; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

Potassium excretion is decreased by the following factors:

  • Absolute aldosterone deficiency or resistance to aldosterone effects
  • Low sodium delivery to the collecting duct
  • Low urine flow
  • Low serum potassium levels
  • Renal failure

An acute increase in osmolality causes potassium to exit from cells. An acute cell/tissue breakdown releases potassium into extracellular space.


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