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Health Library

Our Health Library information does not replace the advice of a doctor. Please be advised that this information is made available to assist our patients to learn more about their health. Our providers may not see and/or treat all topics found herein.

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).