Test ID: GGT
CPT code: 82977
LOINC: 2324-2
Specimen Type: SERUM/PLASMA
Frequency: Setup: Daily; TAT <24 hrs
Instructions: Red gel tube (0.5mL serum min). Alt/ heparinized plasma. Refrigerate.
Text: GGT measurement is principally used to diagnose and monitor
hepatobiliary disease. GGT in serum can be used to ascertain whether
observed elevations of ALP is due to skeletal disease (normal GGT) or
reflects the presence of hepatobiliary disease (elevated GGT). GGT is
also used as a screening test for occult alcoholism.
Methodology: COLORIMETRIC