Abbrev Code:GGT   
Order Code:LAB85Order Name:GGT
Synonyms:Gamma Glutamyltransferase; Gamma Glutamyl Transpeptidase (GGTP)
Methodology:Bichomatic rate
St. Joseph: Enzymatic
CPT Codes: 82977 x1
Turnaround Time:Performed and reported 24 hours/day.

Collection Instructions

Optimal Volume:2.5 mL
Minimum\Peds Volume:0.6 mL
Container:Green (lithium heparin, gel), St Joseph - Green (lithium heparin, no gel)
Alternate Containers: Green (lithium heparin, no gel), Red (no gel), Red or gold (gel), St. Joseph - Red (no gel)
Causes for Rejection:Hemolysis

Processing and Shipping

Specimen Processing:Centrifuge and aliquot within 2 hours of collection 1.25 mL, 0.2 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:Stability: Room or refrigerated temperature - 7 days; frozen - 6 months.
Test Performed at or Referral Lab Chemistry  (M Health Maple Grove Clinic, UMMC-East Bank, Oxboro Bloom, Oxboro Bloom, Lakes, Ridges, Northland, Southdale, UMMC/UMMCH-West Bank, Clinics, Grand Itasca, St. Joseph's)


Reference Range:
Site Age Female U/L Male U/L
Grand Itasca All 9-64 9-64
St Joseph All 0-50 0-50
All other sites 0-4 d 0-263 0-263
All other sites 5d-2 mo 0-130 0-130
All other sites 3-11 mo 0-65 0-65
All other sites 1-11 y 0-30 0-30
All other sites 12-19 y 0-30 0-44
All other sites 20 Y & older 0-40 0-75
Use:Suspect hepatic disease.

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