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 ...
Aspartate aminotransferase (AST) is an enzyme that’s present in various tissues of your body. An enzyme is a protein that helps trigger chemical reactions that your body needs to function. AST is ...