UW Hospital and Clinics Lab Test Directory
| Test Name: |
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GGT/Gamma Glutamyl Transferase
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| Test Code(s): |
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GGT
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| CPT Code(s): |
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82977
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| Methodology: |
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5-Amino-2-Nitrobenzoate
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| Days Performed: |
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Daily, 24 hours.
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| Turnaround Time: |
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Stat: 1 hour.
Routine: 4 hours.
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Specimen Requirements
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| Specimen: |
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Blood
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| Collection Container: |
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Preferred: Green cap with yellow ring (PST)
Also Acceptable:
Green top,
Red cap with yellow ring (SST),
Red top
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| Collection Volume: |
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Preferred: 1 mL
Pediatrics: 0.4 mL
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| Sample Analyzed: |
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Plasma or serum
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| Volume Required: |
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Preferred: 0.5 mL
Pediatrics: 0.2 mL
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| Specimen Processing: |
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Centrifuge. If a complete barrier has not formed, transfer cell-free serum/plasma to plastic vial. Refrigerate.
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| Specimen Transport: |
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Transport specimen to laboratory. Transport with coolant pack if coming from outreach location.
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| Stability: |
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Ambient: 24 hours
Refrigerated: 4 days
Frozen: 2 months
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Interpretation
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Reference Interval:
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| Age |
U/L |
| 0-29 days |
0-200 |
| 30 days-59 days |
0-120 |
| 60 days-3 months |
0-100 |
| 4-17 months |
0-50 |
| 18 months-15 years |
0-30 |
| 16 years and up, Male |
0-85 |
| 16 years and up, Female |
0-40 |
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Gamma Glutamyl Transferase GT GGTP Transpeptidase
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