Lactic Acid: What Affects The Test

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What Affects the Test

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Reasons you may not be able to have the test or why the results may not be helpful include:

Taking large doses of the medicine epinephrine.
Taking medicines, such as isoniazid for tuberculosis or metformin (Glucophage) for diabetes.
Using a lot of acetaminophen (such as Tylenol) or alcohol.
Exercising prior to this test.
Clenching a fist while the blood sample is being drawn. Also, lactic acid levels may be higher if the tourniquet is around your arm for a long time.

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Last updated:	August 19, 2008
Author:	Maria G. Essig, MS, ELS
Reviewed By:	Kathleen Romito, MD - Family Medicine, Brian Leber, MDCM, FRCPC - Hematology
Editors:	Susan Van Houten, RN, BSN, MBA, Tracy Landauer

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