Liver tests check the blood for two main liver enzymes: Aspartate aminotransferase (AST), formerly called SGOT; the AST enzyme is also found in muscles and many other tissues besides the liver. Alanine aminotransferase (ALT), formerly called SGPT; ALT is almost exclusively found in the liver. read more
Elevated liver enzymes may be discovered during routine blood testing. In most cases, liver enzyme levels are only mildly and temporarily elevated. Most of the time, elevated liver enzymes don't signal a chronic, serious liver problem. read more
Elevated liver enzymes are a marker of inflammation or damage to liver cells. Inflamed or injured liver cells cause the liver enzymes alanine transaminase (ALT) and aspartate transaminase (AST) to leak into the bloodstream. read more