The AST test is part of the comprehensive metabolic panel, which is a routine blood test your doctor uses to monitor your overall health. It is often part of your regular checkups.

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 Panel Blood Test. ALT usually is done as part of a group of liver function tests called a liver panel. This panel also includes an aspartate aminotransferase (AST) test.