What are the normal levels of liver enzymes?

The blood tests most frequently used for liver disease are the aminotransferases (alanine aminotransferase or ALT and aspartate aminotransferase or AST). Normal levels of ALT ranges from about 7-56 units/liter, and 10-40units/liters for AST.Nov 17, 2016 read more

The normal levels for the most common liver enzymes, aspartate aminotransferase and alanine aminotransferase, are 10 to 40 units per liter and 7 to 56 units per liter, says eMedicineHealth. Mild elevations two to three times the size of those figures do occur, and severe levels typically reach over 1000. read more

Elevated levels of liver enzymes in general signify some form of liver (or hepatic) damage or injury. These levels may be elevated acutely (short term) indicating sudden injury to the liver, or they may be elevated chronically (long term) suggesting ongoing liver injury. read more

Aspartate aminotransferase, AST or SGOT, and alanine aminotransferase, ALT or SGPT, are the two transaminases. Gamma-glutamyl transferase, or GGT, and alkaline phosphatase, or AP, are the two cholestastic liver enzymes. Significance. Liver damage or disease may be present even when liver enzyme levels are within normal limits or reference ranges. read more