Gamma-Glutamyltransferase (GGT), Plasma or Serum

Test Code
GGT- NOCO


CPT Codes
82977

Preferred Specimen
1 ml plasma from Green top (Lithium Heparin)


Minimum Volume
0.5 mL
Note: For neonate requirements see Neonate Minimum Blood Volumes


Other Acceptable Specimens
1 mL serum from Serum Gel or Red Top


Specimen Stability
Specimen Type Temperature Time
Plasma Li Hep Refrigerated 7 days
Serum SST Refrigerated 7 days
Red Top – Separated Refrigerated 7 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis


Methodology
Spectrophotometric

Setup Schedule
Monday through Sunday; Continuously


Report Available
Same day


Reference Range
MALE
0 - 6 months: 12 - 122 IU/L
6 months - 1 year: ≤ 39 IU/L
1 -13 years: 3 - 22 IU/L
13 - 19 years: ≤ 42 IU/L
19 - 150 years: 5 - 80 IU/L

FEMALE
0 - 6 months: 15 - 132 IU/L
6 months - 1 year: ≤ 39 IU/L
1 -13 years: 4 - 31 IU/L
13 - 19 years: 4 - 29 IU/L
19 - 150 years: 5 - 60 IU/L


Performing Laboratory
Mckee Medical Center
North Colorado Medical Center
Sterling Regional Medical Center



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.