Laboratory Services
1 Hour Glucose (OB Screen)
Print this pageUpdated Test Information:
| Test Description |
1 Hour Glucose (OB Screen)
|
|
|---|---|---|
| Synonym(s) |
GTT, 1 hour, Glucose Tolerance Test |
|
| Test ID |
GLUOB
|
|
| Specimen Type |
Serum |
|
| Specimen Requirements |
GTT 1H |
|
| Alternate Specimen Type |
Red top tube, Li-heparin plasma, K2EDTA, NaF/Na2EDTA, KF/Na2EDTA, NaF/K‑Oxalate, SST |
|
| Specimen Collection / Processing Instructions |
GTT 1H - Administer 50 g glucola 1 hour prior to drawing the patient. Do not mix with water unless directions on product label indicate to do so. The patient does not need to be fasting for the screen. 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. |
|
| 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 25 °C |
|
| Methodology |
UV Enzymatic |
|
| Estimated TAT |
0-2 days |
|
| Testing Schedule |
Monday-Saturday |
|
| CPT Code(s) |
82950 |
|
| Performing Lab |
Incyte Diagnostics |
|
| LOINC Code(s) |
20438-8 |
