Milliequivalents (mEq)

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.

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By: Healthwise StaffLast Revised: May 6, 2011
Medical Review: Anne C. Poinier, MD - Internal Medicine
Thomas M. Bailey, MD - Family Medicine

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