About the GAMMA GLUTAMYL TRANSFERASE (GGT)
Differentiate hepatic vs bone ALP elevation.
Sample Required
Blood (venous sample).
Fasting Requirement
As advised by physician.
Why is this Test Done?
- Differentiate hepatic vs bone ALP elevation.
- Assess alcohol‑related liver injury.
General Reference Range
- ~0–40 U/L
What Abnormal Results Mean
High GGT suggests hepatic origin of ALP elevation and cholestasis; induced by alcohol, drugs.





