what is ggt in a blood test
Gamma-glutamyl transferase (GGT) is an enzyme that is found in many organs, such as the kidney, liver, gallbladder, spleen, and pancreas.Among these, the liver is the main source of GGT in the blood. This test measures the level of GGT in a blood sample.GGT is increased in most diseases that cause damage to the liver or bile ducts. Normally, GGT is present in low levels, but when the liver is injured, the GGT level can rise.amma-glutamyl transferase (GGT) is an enzyme that is found in many organs, such as the kidney, liver, gallbladder, spleen, and pancreas.