Potassium ion in physiology and cardiovascular disorders

Krystyna Knypl

ISSN: 1505-8409

Przewodnik Lekarza/Guide for GPs

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2/2006
vol. 9

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abstract:

Potassium ion in physiology and cardiovascular disorders

Krystyna Knypl

Przew Lek 2006; 2 80-85

Online publish date: 2006/03/31

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Potassium is one of the most important ions in the body. Potassium has many physiological functions, including cellular metabolism, glycogen and protein synthesis and regulation of the electrical action potential across cell membranes, especially in the myocardium. Approximately 98% of total body potassium is found in the intracellular space, with approximately 2% in the extracellular space. The normal serum potassium concentration is 3.5-5.0 mEq/l. Hypokalemia is defined as a serum potassium concentration below 3.5 mEq/l. Hypokalemia signs and symptoms involve changes in muscle and cardiovascular functions, but it can also manifest itself as weakness, nausea or vomiting.

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Potassium ion in physiology and cardiovascular disorders

Krystyna Knypl

electrolytes, potassium, hypokalemia