An AST blood test measures levels of aspartate aminotransferase (AST) and helps determine liver function. Too much of this enzyme can indicate a problem, such as liver damage. Aspartate ...

High levels of liver enzymes can suggest liver inflammation or disease. Liver enzyme tests can help diagnose issues like hepatitis, cirrhosis, and heart disease. Factors like alcohol use and physical ...

Annabelle, an 18-year-old white woman, was referred by her primary care provider to our gastroenterology practice for markedly elevated serum transaminase levels. Her mother and grandmother ...

Dear Dr. Roach: I'm a 65-year-old male. On my recent semiannual checkup, my labs showed an AST level of 53 U/L and an ALT level of 62 U/L. I am concerned about nonalcoholic fatty liver disease. In ...

Like most chronic liver diseases, in NAFLD there is a long period during which an individual patient remains essentially asymptomatic. In asymptomatic individuals, the diagnosis is often made when a ...