The GGTP test checks the health of your liver by measuring the amount of the enzyme, Gamma-glutamyl transpeptidase (GGTP) in your blood. It is used to diagnose liver disease or bile duct obstructions in conjunction with other liver tests such as ALT, ASP, ALP and bilirubin. Most of these tests are ordered in a liver panel which is a series of tests performed to check for liver damage. Such a test is usually ordered in case of alcoholism, jaundice, pancreatitis or any tumors or cirrhosis.
Mostly, a GGTP is ordered on observing high levels of ALP (alkaline phosphatase). If GGTP is also high, it would indicate that the issue is indeed of the liver else, if only ALP is high, the issue is most probably bone disease.
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