GGT is an enzyme present in the liver and bile ducts, involved in amino acid transport and detoxification. Elevated GGT often indicates liver disease or bile duct obstruction, and may also rise with excessive alcohol consumption or certain medications. GGT testing is used to diagnose and monitor liver conditions such as hepatitis, cirrhosis, bile duct diseases, or liver damage from toxins and drugs. Normal levels vary by age and sex, and results should be interpreted according to lab reference ranges.
GGT (Gamma-Glutamyl Transferase) is an enzyme mainly found in the liver, used to assess liver and bile duct health.
Sample Type
Blood
Preparation
TAT
4 hours
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