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GAMMA GLUTAMYL TRANSFERASE
Test CodeGGT
Alias/See Also
Gamma GT;Gamma-Glutamyl;Gamma-glutamyl Transpeptidase;Gamma-Glutamyltranspeptidase;GGT;GGTP;GT
CPT Codes
82977
Preferred Specimen
1 Gold tube (gel separator)
Minimum Volume
0.5 mL
Other Acceptable Specimens
or 1 Lavender tube (EDTA)
Instructions
Centrifuge for complete separation of serum or plasma and red cells. Separate and refrigerate until tested.
Transport Temperature
Refrigerate
Specimen Stability
- 2-8°C up to 30 days
- Frozen up to 1 year
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolyzed
Methodology
G-glutamyl-carboxy-nitoanilide @ 37°C
Setup Schedule
M, T, W, Th, F, Sa, Sun
Reference Range
9 - 64 IU/L
Performed By
Alverno Laboratories
Performing Laboratory
Alverno Central Lab
NCHB1 (Chemistry, Beckman AU)
Last Updated: April 25, 2023