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Electrolytes

Definition

Electrolytes are minerals in your blood and other body fluids that carry an electric charge.

See also:

Alternative Names

Serum chemistries

Information

It is important to keep a balance of electrolytes in your body, because they affect the amount of water in your body, blood acidity (pH), muscle action, and other important processes. You lose electrolytes when you sweat, and you must replace them by drinking fluids.

Electrolytes exist in the blood as acids, bases, and salts (such as sodium, calcium, potassium, chlorine, magnesium, and bicarbonate). They can be measured by laboratory studies of the blood.


Review Date: 8/10/2009
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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