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HelpTest Code GGT Gamma Glutamyltranserase, GGT
Performing Laboratory
Hunterdon Medical Center Laboratory
Useful For
GGT is one of the most sensitive indicators for the diagnosis and monitoring of hepatobiliary diseases. It is often the only parameter increased when screening for these diseases is performed.
Specimen Required
Test updated Maarch 2017
| Container/Tube | |
| Acceptable | PST (Li Hep) Gel- Mint Green Top |
| Acceptable | SST |
| Specimen Volume | 3.0 mL |
| Minimum Volume | 1.0 mL |
Specimen Type
Plasma/Serum
Specimen Transport Temperature
Ambient
Specimen Stability
| Specimen | Temperature | Time Frame |
| Plasma | Refrigerated 2-8°C | 7 days |
| Serum-gel tube | Refrigerated 2-8°C | 7 days |
Updated June 2020
Day(s) Test Set up
Monday through Sunday
Reference Values
| Age | Female | Male | Units |
| 0-182 days | 15-132 | 12-122 | U/L |
| >182 days-1 year | 4-39 | 4-39 | U/L |
| >1 year-18 years | 4-22 | 4-22 | U/L |
| >18 Years | 5-36 | 8-61 | U/L |
Methodology
Enzymatic colorimetric assay.
CPT Code
82977
Loinc Code
2324-2