What Blood Tests Check for Liver Disease?

The ALT enzyme is mainly found in the liver, but it is also present in the kidneys, heart and pancreas. The bloodstream only exhibits traces of the enzyme, according to Mayo Clinic. In cases of liver damage or disease, the level of ALT rises in the blood.

The aspartate transaminase test is also a blood test that checks for liver disease. An increase of AST enzyme in the body also shows damage or illness of the liver. The enzyme’s primary function is metabolizing alanine, an amino acid, states Mayo Clinic.