is_about liver disorder alcohol dependence enzyme enzyme liver hepatobiliary system measurement pancreactic component serum gamma-glutamyl transferase measurement true SNOMEDCT:313849004 Serum gamma-glutamyl transferase level measurement is the quantification of gamma-glutamyl transferase in blood. Gamma-glutamyl transferase is used as a marker for liver/bile duct problems and alcohol abuse. GGT measurement Gamma glutamyl transpeptidase levels Helen Parkinson Gamma gluatamyl transferase levels gamma glutamyl transferase measurement