what test is done to check liver function
Liver enzyme tests, formerly called liver function tests (LFTs), are a group of blood tests that detect inflammation and damage to the liver. They can also check how well the liver is working.iver tests check the blood for two main liver enzymes: 1  Aspartate aminotransferase (AST), formerly called SGOT; the AST enzyme is also found in muscles and many other tissues besides the liver. 2  Alanine aminotransferase (ALT), formerly called SGPT; ALT is almost exclusively found in the liver.