Printable Test Catalog - OU Medicine

[GABRG2] g-AMINOBUTYRIC RECEPT GAMMA-2
SPECIMEN REQUIRED: Whole blood at room temperature
TUBE OR CONTAINER: Lavender (EDTA)
SPECIAL HANDLING: Ship overnight to arrive at performing lab
within 24 hours of collection. Refrigerate if
shipment delayed
SPECIMEN VOLUME: 7 mL
MINIMUM VOLUME: 5 mL
TEST AVAILABILITY: Daily
TURNAROUND TIME: 3 weeks
OTHER NAMES: Gamma-aminobutyric Receptor Subunit Gamma-2 DNA
sequencing
METHODOLOGY: Polymerase Chain Reaction (PCR)
CPT: 83891; 83898 x 10; 83904 x 20; 83912
[GADAB] Glutamic Acid Decarboxylate Ab
SPECIMEN REQUIRED: Refrigerated or frozen serum
TUBE OR CONTAINER: Red or Gold
SPECIMEN VOLUME: 0.5 mL
MINIMUM VOLUME: 0.2 mL (this volume does not allow for repeat
testing)
TEST AVAILABILITY: Daily
REFERENCE RANGE: 0.0-1.5 units/mL
OTHER NAMES: Anti-GAD; GAD65; GADAb
METHODOLOGY: Radioimmunoassay (RIA)
CLINICAL USE: Provides early evidence of autoimmune disease
activity; aids in prediction, diagnosis and
management of patients with diabetes
CPT: 83519
[GAGSU] Urine Glycosaminoglycans
SPECIMEN REQUIRED: Frozen urine (random)
TUBE OR CONTAINER: Plastic urine container
SPECIAL HANDLING: Early morning specimens are preferred
SPECIMEN VOLUME: 20 mL
MINIMUM VOLUME: 2 mL
TEST AVAILABILITY: Daily
TURNAROUND TIME: 10-14 days
CPT: 83864
[GAL1PRBC] RBC Galactose-1-Phosphate
SPECIMEN REQUIRED: Frozen & washed RBC's
TUBE OR CONTAINER: Dark green (heparin)
SPECIMEN VOLUME: 2 mL
MINIMUM VOLUME: 1 mL
TEST AVAILABILITY: Daily
TURNAROUND TIME: 2-3 weeks
REFERENCE RANGE: 0.00 - 0.17 umol/g of hemoglobin