Gamma Glutamyl Transferase (GGT)

Background

This enzyme was first demonstrated in human serum in 1960. It was shown that elevated levels of GGT were to be found in obstructive jaundice, chronic hepatitis, hepatic carcinoma, acute pancreatitis and chronic alcoholism. GGT is found useful as a marker of enzyme induction

Reference ranges

Male: 1 – 78 U/L
Female: 1 – 54 U/L

Specimen requirements

Sample type

• Serum or Lithium Heparin Plasma.

Sample identification:

• Three patient identifiers from
  • Name
  • D.O.B.
  • Address
  • N.H.S. number
  • Unit Number
  should match on the specimen and request form. This check may be performed prior to centrifugation by the Central Sort department.

Turnaround time

2 hours