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Some medical tests report results in milliequivalents (mEq). An equivalent is the amount of a substance that will react with a certain number of hydrogen ions. A milliequivalent is one-thousandth of an equivalent.
Last Revised: May 10, 2013
Author: Healthwise Staff
Medical Review: Anne C. Poinier, MD - Internal Medicine & Thomas M. Bailey, MD - Family Medicine
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