Laboratory Services
Glucose Tolerance, 2 hr
Print this pageUpdated Test Information:
| Test Description |
Glucose Tolerance, 2 hr
|
|
|---|---|---|
| Test ID |
GTT2H
|
|
| Specimen Type |
Serum |
|
| Specimen Requirements |
GTT 1H |
|
| Alternate Specimen Type |
Red, Li-heparin plasma, K2EDTA, NaF/Na2EDTA, KF/Na2EDTA, NaF/K‑Oxalate, SST |
|
| Specimen Collection / Processing Instructions |
GTT F - Administer 75 g glucola. Do not mix with water unless directions on product label indicate to do so. During the test period, the patient should remain inactive and receive nothing by mouth including nicotine products. Small sips of water or ice is permissible. Draw 3 specimens at fasting, 1 hour after administering the glucola, and 2 hours after. |
|
| Minimum Sample Volume |
1 mL |
|
| Pediatric Min. Volume (if applicable) |
500 uL |
|
| Additional Processing Details |
Plasma or serum samples without preservative (NaF) should be separated from the cells or clot within half an hour of being drawn. |
|
| Stability |
8 hours at 15-25˚C |
|
| Methodology |
UV Enzymatic |
|
| Estimated TAT |
0-2 days |
|
| Testing Schedule |
Monday-Saturday |
|
| CPT Code(s) |
82951 |
|
| Performing Lab |
Incyte Diagnostics |
|
| LOINC Code(s) |
72171-2 |
