Test Code GGT GGT (gamma glutamyltransferase)
Performing Laboratory
Helen Keller Laboratory
Specimen Container:
Green Lithium Heparin Tube
Specimen Requirements
Preferred: Lithium heparin plasma
Acceptable: Serum
Minimum volume: 1 mL (pediatric: 0.2 mL) of
plasma or serum.
Specimen Stability Information
3 days refrigerated
Reference Intervals:
Males 8 – 61 U/L
Females 5 – 36 U/L
Day(s) Testing is Performed
Monday through Sunday
CPT Coding:
82977