What are liver function blood tests and what do they mean?
Liver function tests are tests that reflect various types of damage to the liver and bile ducts. A typical panel involves transaminases (SGPT, SGOT), alkaline phosphatase, and a bilirubin. Diseases that affect the liver are manifested by elevated transaminases while diseases involving the bile ducts are manifested by an increased alkaline phosphatase. Both types of diseases can raise the bilirubin. Elevation of any of these tests reflects damage and requires further evaluation.