GAMMA GT

Test Code

LAB85

CPT Codes
82977

Preferred Specimen

One 4.5 mL light green top tube
Pediatric: One light green top microtainer

Other Acceptable Specimens

Dark green top, red top or gold top tube

Instructions

Sample must be centrifuged within two hours of collection. Serum/plasma must be removed from the red cells and put into aliquot tubes following centrifugation.

Transport Temperature

Refrigerated

Specimen Stability

Centrifuge within 2 hours of collection
Ambient: 7 days Refrigerated: 7 days Frozen: 1 year

Methodology
G-glutamyl-p-nitroanilide

Setup Schedule

Sunday-Saturday

Reference Range

AGE	Reference Range (U/L)
0-14 days	15-220
15 days-12 months	8-125
1-10 years	6-16
11-18 years	7-21
≥19 years	7-50

Performing Laboratory
West Virginia University Hospital, Inc.
Berkeley Medical Center
Barnesville Hospital
Camden Clark Medical Center
Garrett Regional Medical Center
Jackson General Hospital
Princeton Community Hospital
Potomac Valley Hospital
Reynolds Memorial Hospital
Summersville Regional Medical Center
St. Joseph’s Hospital
United Hospital Center
Wetzel County Hospital
Wheeling Hospital

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.