Why it matters: ALT and AST are key liver enzymes, and changes in their levels can indicate liver cell injury or other health issues. How they’re tested: Blood tests measure these enzymes, with ...

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 ...

TAMPA, Fla. (WFLA) — Whenever you get bloodwork done, you probably don’t know what exactly you’re supposed to be looking at on the sheet (unless you’re a healthcare provider, that is). Glucose, sodium ...

A person can have hepatitis C with no symptoms. Liver enzyme tests can help detect and diagnose a hepatitis C infection by showing liver damage and inflammation. Hepatitis C is a contagious liver ...

Alanine aminotransferase (ALT) is a cytosolic enzyme predominantly found in hepatocytes and is released into the circulation in response to liver injury. Measurement of serum ALT levels has become a ...

Mark Gurarie is a writer covering health topics, technology, music, books, and culture. He also teaches health science and research writing at George Washington University's School of Medical and ...