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How do you prepare for an alanine aminotransferase test?

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The alanine aminotransferase test (ALT) is a blood test that checks for liver damage. You don't need to do anything special before you get your blood drawn. Your doctor might ask you to stop eating or drinking a few hours beforehand. Tell your doctor what prescription drugs or supplements you take. Some medicines can affect the results.

SOURCES:

American Association for Clinical Chemistry: "ALT."

Mayo Clinic: "Liver Disease: Definition." "Liver function tests."

Medscape: "Alanine Aminotransferase."

National Heart, Lung, and Blood Institute: "What To Expect With Blood Tests."

Nemours Foundation: "Blood Test: Alanine Aminotransferase (ALT, or SGPT)."

University of Rochester Medical Center: "ALT."

Reviewed by Jennifer Robinson on May 14, 2019

SOURCES:

American Association for Clinical Chemistry: "ALT."

Mayo Clinic: "Liver Disease: Definition." "Liver function tests."

Medscape: "Alanine Aminotransferase."

National Heart, Lung, and Blood Institute: "What To Expect With Blood Tests."

Nemours Foundation: "Blood Test: Alanine Aminotransferase (ALT, or SGPT)."

University of Rochester Medical Center: "ALT."

Reviewed by Jennifer Robinson on May 14, 2019

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What happens during an alanine aminotransferase test?

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