Understand Your Test

Gamma-Glutamyl Transferase

Formal Name

 Gamma-Glutamyl Transferase

Why Get Tested?

To evaluate for a possible liver disease or bile duct disease or to differentiate between liver and bone disease as a cause of elevated alkaline phosphatase (ALP); sometimes to screen for or monitor alcohol abuse.

When To Get Tested?

When you have symptoms of a liver or bile duct disorder or as follow up when you have an increased ALP level.