0020009
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Gamma Glutamyl Transferase, Serum or Plasma

GT
Example Reports
Abnormal
Normal

Ordering Recommendation

May be useful as an indirect marker of alcohol abuse, nonalcoholic fatty liver disease, drug intoxication, or other liver diseases.

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation
Collect

Serum separator tube or plasma separator tube. Also acceptable: Pink (K2EDTA).

Specimen Preparation

Allow serum tube to clot completely at room temperature. Separate serum or plasma from cells within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.2 mL)

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions

Grossly hemolyzed specimens.

Remarks
Stability

After separation from cells: Ambient: 1 week; Refrigerated: 1 week; Frozen: 2 months

Methodology

Quantitative Enzymatic Assay

Performed

Sun-Sat

Reported

Within 24 hours

Reference Interval

By report (reports may vary based on instrumentation)

Interpretive Data



Compliance Category

FDA

Note

Hotline History

N/A

CPT Codes

82977

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Components

Component Test Code* Component Chart Name LOINC
0020009 Gamma Glutamyl Transferase 2324-2
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

  • Gamma-glutamyl Transpeptidase
  • GGT
  • GT
  • Gamma-Glutamyltranspeptidase
  • GGTP
  • Gamma-Glutamyl
  • Gamma GT
Gamma Glutamyl Transferase, Serum or Plasma