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HelpTest Code LAB85 Gamma-Glutamyl Transferase (GGT)
Performing Lab
Arnot Ogden Medical Center/ Ira Davenport Memorial Hospital
Ordering Recommendations
Diagnosing and monitoring hepatobiliary disease, it is currently the most sensitive enzymatic indicator of liver disease.
Ascertaining whether observed elevations of alkaline phosphatase are due to skeletal disease (normal gamma-glutamyltransferase: GGT) or reflect the presence of hepatobiliary disease (elevated GGT)
.A screening test for occult alcoholism.
Collect
Serum or Plasma
Collection Device
Preferred: Gold Top Tube
Acceptable at IDMH: Gold Top Tube or Green Top Tube
Specimen Volume
5 mL
Stability (from collection to initiation)
| Room Temp | 8 Hours |
| Refrigerated | 1 month |
| Frozen | 1 year |
Storage/Transport Temperature
Room Temp or Refrigerated
Remarks
Turn Around Time
| STAT | 1 Hour |
| Routine | 8 Hours |
Methodology
Enzymatic Rate Absorbance
Start Date
9/13/2017
Last Review Date
06/24/2025
7/8/25 AP