What causes hyperkalemia (high serum potassium level)?

Updated: Jun 20, 2018
  • Author: Eleanor Lederer, MD, FASN; Chief Editor: Vecihi Batuman, MD, FASN  more...
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When hyperkalemia is discovered, investigate potential pathophysiologic mechanisms. Hyperkalemia can result from any of the following, which often occur in combination:

  • Excessive intake

  • Decreased excretion

  • A shift of potassium from the intracellular to the extracellular space

See Clinical Presentation for more detail.

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