Gamma Glutamyl Transferase (GGT)

CPT Code(s): 82977 Quest Code 482

Methodology: Spectrophotometry (SP)

Reference Range(s)

 

Male (U/L)

Female (U/L)

 

12-122

15-132

6-11 Months

 ≤39

 ≤39

1-12 Years

3-22

3-22

13-15 Years

8-32

7-18

16-19 Years

9-31

6-26

20-29 Years

3-70

3-40

30-39 Years

3-90

3-50

40-54 Years

3-95

 

40-49 Years

 

3-55

50-59 Years

 

3-70

55-59 Years

3-85

 

≥60 Years

3-70

3-65

 Clinical Significance

Elevated GGT is found in all forms of liver disease. Measurement of GGT is used in the diagnosis and treatment of alcoholic cirrhosis, as well as primary and secondary liver tumors. It is more sensitive than alkaline phosphatase, the transaminases, and leucine aminopeptidase in detecting obstructive jaundice, cholangitis, and cholecystitis. Normal levels of GGT are seen in skeletal diseases; thus, GGT in serum can be used to ascertain whether a disease, suggested by elevated alkaline phosphatase, is skeletal or hepatobiliary.

Alternative Name(s) GGT

Preparation: No special preparations on your part for this test. As with any blood draw, it is a good practice to drink water ahead of the draw so that you are well hydrated.

Estimated time to receive results is 1-2 days

Please be advised, that our services are strictly self pay and are not eligible for submission as a claim to your health insurance provider. However, you can submit the receipt for reimbursement to many Flexible Spending and Health Savings Accounts for reimbursement.

Sample of Gamma Glutamyl Transferase (GGT) test

For more Information on any of your lab test results

  • Consult your physician
  • Review the information on the independent, non-profit web site: www.labtestsonline.org

These are not intended as diagnostic comments, but only to give you sufficient information for further discussion with your physician. It is important that you promptly consult your physician regarding any abnormal findings.

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