A GGT blood test is usually performed to check the levels of GGT, i.e., gamma-glutamyl transferase or gamma-glutamyl transpeptidase, in blood. Gamma-glutamyl transferase is a protein or an enzyme which occurs in the liver, gallbladder, kidneys, spleen, and pancreas. However, most of GGT present in blood is passed on by the liver. It is responsible… Continue reading What is the GGT Normal Range?