Alanine aminotransferase (ALT) is an enzyme primarily found in your liver. An enzyme is a protein that helps speed up ...

An AST blood test measures levels of aspartate aminotransferase (AST) and helps determine liver function. Less than 40 IU/L is normal, but too much of this enzyme can indicate a problem, such as liver ...

Management guidelines for chronic hepatitis B infection recommend regular testing of liver function, hepatitis B virus DNA, and other disease-related parameters, depending on patient status but ...