Liver function tests
Liver function tests are common tests that are used to see how well the liver is working. Tests include:
- Albumin
- Alpha-1 antitrypsin
Alpha-1 antitrypsin
Alpha-1 antitrypsin (AAT) is a lab test to measure the amount of AAT in your blood. The test is also done to check for abnormal forms of AAT....
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- Alanine aminotransferase (ALT)
ALT
The alanine transaminase (ALT) blood test measures the level of the enzyme ALT in the blood.
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AST
The aspartate aminotransferase (AST) blood test measures the level of the enzyme AST in the blood.
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Gamma-glutamyl transpeptidase (GGT)
The gamma-glutamyl transferase (GGT) blood test measures the level of the enzyme GGT in the blood.
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- Prothrombin time, also expressed as international normalized ratio (INR)
Prothrombin time
Prothrombin time (PT) is a blood test that measures the time it takes for the liquid portion (plasma) of your blood to clot. It measures the functio...
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- Urine bilirubin
Reviewed By
Linda J. Vorvick, MD, Clinical Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
Daniels L, Khalili M, Goldstein E, Bluth MH, Bowne WB, Pincus MR. Evaluation of liver function. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 24th ed. Philadelphia, PA: Elsevier; 2022:chap 22.
Pincus MR, Abraham NZ, Bluth M. Interpreting laboratory results. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 24th ed. Philadelphia, PA: Elsevier; 2022:chap 9.
Pratt DS. Liver chemistry and function tests. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal and Liver Disease. 11th ed. Philadelphia, PA: Elsevier; 2021:chap 73.