What is an AST test?AST (aspartate aminotransferase) is an enzyme that is found mostly in the liver, but also in muscles. When your liver is damaged, it releases AST into your bloodstream. An AST blood test measures the amount of AST in your blood. The test can help your health care provider diagnose liver damage or disease.Other names: SGOT test, serum glutamic oxaloacetic transaminase test; aspartate transaminase test
