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Units per Liter (U/L)

The results of some medical tests are reported in units per liter (U/L).

  • A unit is an arbitrary amount agreed upon by scientists and doctors.
  • A liter is a measure of volume that is slightly larger than a quart.
  • A kilo unit is one thousand units. It is written kU/L. Some medical tests are reported using this standard international unit (SI unit).
By Healthwise Staff
Primary Medical Reviewer Anne C. Poinier, MD - Internal Medicine
Specialist Medical Reviewer Thomas M. Bailey, MD - Family Medicine
Last Revised May 6, 2011

WebMD Medical Reference from Healthwise

Last Updated: May 06, 2011
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