When liver cells are damaged, they release ALT into the blood. That means high ALT levels could be a sign of liver disease or damage. ALT blood tests help healthcare providers assess the health of ...

Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) are two liver enzymes measured in a blood test to check the health of your liver. High AST and ALT levels are a general sign of ...

The study also shows that if ALT is notably raised (greater than twice the upper limit of normal), then the probability of chronic viral hepatitis is high (nearly 8%), but sensitivity is low.