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Gamma/Glut Transferase (GGT)
Test CodeLAB85
Alias/See Also
1231100174
CPT Codes
82977
Includes
GAMMA GLUTAMYL TRANSFERASE (GGT)
Preferred Specimen
CLINIC COLLECTIONS: Green Lithium Heparin tube (Gel separator preferred)
Minimum Volume
CLINIC COLLECTIONS: 0.5 mL plasma
Instructions
CLINIC COLLECTIONS: Collect 0.5 ml plasma in Green Lithium Heparin tube (Gel separator preferred). Must be spun within 2 hours after collection. If no gel separator, plasma must be pulled off cells within 2 hours.
If collecting with AST, ALT, VD25, K+, or LDH, label routes to Gold/SST. Collect 1.0 mL of serum in Gold/SST. Must be spun within 2 hours after collection.
If collecting with AST, ALT, VD25, K+, or LDH, label routes to Gold/SST. Collect 1.0 mL of serum in Gold/SST. Must be spun within 2 hours after collection.
Transport Temperature
Refrigerated
Specimen Stability
Room temperature (20 to 25°C): 7 days
Refrigerated (2 to 8°C): 7 days
Freezer (-20°C): 3 months
Refrigerated (2 to 8°C): 7 days
Freezer (-20°C): 3 months
Methodology
Abbott Alinity
Reference Range
Males:
0-5 Days: 34-263 IU/L
5-14 Days: 10-120 IU/L
14-60 Days: 10-100 IU/L
60-330 Days: 10-80 IU/L
330-365 Days: 10-40 IU/L
1-4 Years: 6-19 IU/L
4-7 Years: 10-22 IU/L
7-10 Years: 13-25 IU/L
10-12 Years: 17-30 IU/L
12-14 Years: 17-44 IU/L
14-16 Years: 5-33 IU/L
16-18 Years: 11-34 IU/L
Adults: 15-73 IU/L
Females:
0-5 Days: 34-263 IU/L
5-14 Days: 10-120 IU/L
14-60 Days: 10-100 IU/L
60-330 Days: 10-80 IU/L
330-365 Days: 10-40 IU/L
1-4 Years: 6-19 IU/L
4-7 Years: 10-22 IU/L
7-10 Years: 13-25 IU/L
10-12 Years: 17-30 IU/L
12-14 Years: 14-25 IU/L
14-16 Years: 14-26 IU/L
16-18 Years: 11-28 IU/L
Adults: 12-43 IU/L
0-5 Days: 34-263 IU/L
5-14 Days: 10-120 IU/L
14-60 Days: 10-100 IU/L
60-330 Days: 10-80 IU/L
330-365 Days: 10-40 IU/L
1-4 Years: 6-19 IU/L
4-7 Years: 10-22 IU/L
7-10 Years: 13-25 IU/L
10-12 Years: 17-30 IU/L
12-14 Years: 17-44 IU/L
14-16 Years: 5-33 IU/L
16-18 Years: 11-34 IU/L
Adults: 15-73 IU/L
Females:
0-5 Days: 34-263 IU/L
5-14 Days: 10-120 IU/L
14-60 Days: 10-100 IU/L
60-330 Days: 10-80 IU/L
330-365 Days: 10-40 IU/L
1-4 Years: 6-19 IU/L
4-7 Years: 10-22 IU/L
7-10 Years: 13-25 IU/L
10-12 Years: 17-30 IU/L
12-14 Years: 14-25 IU/L
14-16 Years: 14-26 IU/L
16-18 Years: 11-28 IU/L
Adults: 12-43 IU/L
Performing Laboratory
LITTLE ROCK LABORATORY
Last Updated: August 28, 2026
