Font Size
A
A
A

Definition of Hypokalemia

Hypokalemia: Low blood potassium.

Potassium is the major positive ion (cation) found inside of cells. The chemical notation for potassium is K+.

The proper level of potassium is essential for normal cell function. An abnormal decrease (or increase) of potassium can profoundly affect the nervous system and heart, and when extreme, can be fatal.

The normal blood potassium level is 3.5 - 5.0 milliEquivalents/liter (mEq/L), or in international units, 3.5 - 5.0 millimoles/liter (mmol/L). See also: Potassium balance.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=3857
Last Editorial Review: 6/27/2004


Medical Dictionary Definitions A - Z

Search Medical Dictionary


Women's Health

Find out what women really need.

Are You Depressed? Take the Quiz


Medical Dictionary