Liver and Bone Enzyme Test - Alkaline Phosphatase Test (ALP)

Measurement of alkaline phosphatase (ALP) activity in blood serum. ALP is an enzyme found in the cell membranes of many tissues, particularly bone (osteoblasts) and liver (bile ducts). It is used as a non-specific marker for the diagnosis and monitoring of liver and bone diseases, and its interpretation requires determining the source of elevation (bone or hepatic).