An international unit is an arbitrary amount of a substance agreed
upon by scientists and doctors. A milliliter is a measure of volume that is
equal to one-thousandth of a liter (or slightly less than a quarter of a
Some medical tests report results using international units (IU)
per milliliter (mL).
Anne C. Poinier, MD - Internal Medicine & Thomas M. Bailey, MD - Family Medicine
How this information was developed to help you make better health decisions.
The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.