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HelpTest Code GGT Gamma-Glutamyltransferase (GGT), Plasma or Serum
Additional Codes
LAB85
Performing Laboratory
Central Peninsula Hospital
Collection Method
Venipuncture
Container
Lt Green / Plasma Separator / Lithium Heparin
Specimen Type
Preferred
- Plasma- Light Green Top
Acceptable
- Serum- Gold Top SST or Red Top
Minimum Volume
0.5ml
Specimen Stability
| Ambient | 7 days |
| Refrigerated (4°C to 8°C) | 7 days |
| Frozen(-40°C to 0°C) | 1 year |
Reference or Target Ranges
| Age | Male | Female |
| < 6 months | 12 - 122 | 15 - 132 |
| > 6 months | 10 - 71 | 6 - 42 |
Reportable Units
U/L
Critical Value
Not defined for this assay
Reasons for Rejection
| Hemolysis Threshold | 200 mg/dL |
| Icterus Threshold | 50 mg/dL |
| Lipemia Threshold | 1500 mg/dL |
| Other | QNS, contaminated, improperly labeled, improper specimen type |
Performance Information
| Days and Time Performed | 24/7 |
| Expected Turn Around Time |
Stat: 1 hour Routine: 4 hours |
| Stat Availability | Yes |
| Performing Bench | CPH Chemistry |
| Methodology/Method Description | Roche Cobas |
CPT Codes
82977
Last review/edit date
2025