GGT (GGT)

Department: Chemistry
Test Synonym(s): LAB85, GGT, Gamma-Glutamyl Transferase (Ggt) Blood, GGT Blood
CPT Codes: 82977
Methodology: L-Gamma-glutamyl-3-carboxy-4-nitroanilide Substrate
Reference Range: 0-14 days: 23-219 U/L; 15 days-<1 yr: 8-127 U/L; 1-<11 yrs: 6-16 U/L; 11-<19 yrs: 7-21 U/L; 18-150 yrs: 9-36 U/L (female); 12-64 U/L (male)
Tube Type: Light green top PST (Lihtium Heparin with gel)
Specimen: Plasma
Alternate Specimen: Red top (no gel)
Pediatric Requirements: 1 light green top microtainer
Volume: 1 mL plasma
Minimum Volume: 1 light green top
Temperature: Separate within one hour and store at 2-8C until delivery
Stability: Room temperature: 7 days; Refrigerated: 7 days; Frozen: 1 year
Reasons for Rejection: Hemolysis, improper collection
Days Performed: Daily
Times Performed: Continuous
TAT: STAT: 1 hour; ROUTINE: 2 hours after receiving in lab
Special Instructions: Recommend fasting samples, refrigerate 2-8 degrees C for 8 hours if assay is not done in 8 hours, freeze at -20 degrees C

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