ALT: The Test | Alanine Aminotransferase; ALT Test: Alanine Aminotransferase; SGPT; GPT; Serum Gluta
Alanine aminotransferase (ALT) is an enzyme found mostly in liver and kidney cells. ALT is released into the blood when the liver is damaged. The ALT blood test is often ordered in conjunction with aspartate aminotransferase (AST) or as part of a liver pa...