Specimen Requirements

Title

GAMMA GLUTAMYL TRANSFERASE (GGT/YGT)

Specimen Requirement

1 SST/1.0mL serum. After 30 minutes of clotting, promptly centrifuge and refrigerate.

Methodology

Stability

Refrigerated: 1 month; Frozen: 1 year

Reference Range

By Report

Turnaround

1 day

Clinical Use

Gamma-glutamyltransferase measurements are used in the diagnosis and treatment of liver diseases such as alcoholic cirrhosis and primary and secondary liver tumors. Elevated serum gammaglutamyltransferase (GGT), sometimes called GGTP, is found in all forms of liver disease. It is more sensitive than alkaline phosphatase, the transaminases, and leucine aminopeptidase (LAP) in detecting obstructive jaundice, cholangitis, and cholecystitis.

Test Code

YGT