The Liver Function Decathlon consists of alanine aminotransferase, aspartate aminotransferase, glutamyltransferase, alkaline phosphatase, cholinesterase, total bile acids, total protein, albumin, preprotein, total bilirubin, direct bilirubin, and indirect bilirubin. The Liver Function 12 is mainly used to diagnose the extent of liver damage and the cause of liver disease. Glutamate aminotransferase, alanine aminotransferase, glutamyltransferase and alkaline phosphatase are mainly used to diagnose whether there is damage to the liver cells, total protein, albumin, globulin and albumin-globulin ratio are mainly used to diagnose the synthesizing function of the liver, while total bilirubin, direct bilirubin, indirect bilirubin and bile acids are mainly used to diagnose liver diseases. Seek medical attention and treatment when liver function is abnormal.