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International Units per Liter (IU/L)

An international unit is an arbitrary amount of a substance agreed upon by scientists and doctors; a liter is a measure of volume that is slightly greater than a quart.

Some medical tests report results using international units (IU) per liter (L).

Last Revised: May 6, 2011

Author: Healthwise Staff

Medical Review: Anne C. Poinier, MD - Internal Medicine & Thomas M. Bailey, MD - Family Medicine

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