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HelpTest Code GLUOB OB Glucose Screen
Additional Codes
Epic EAP: LAB2715
Epic Description: OB GLUCOSE SCREEN
Synonym
OB Glucose Screen
Glucose Tolerance Screen, OB
Glucose Screen, OB
Diabetic Screen, OB
O'Sullivan Test
Collection Limitations
Before 11 AM – Monday thru Friday (outpatients).
Specimen Type
Blood
Specimen Required
| Collection Container | Preferred Volume | Minimum Volume | |
|---|---|---|---|
| Preferred |
Gray, Sodium Fluoride & Potassium Oxalate |
4.0 mL | 1.0 mL |
| Alternate | Green, Lithium Heparin with Inert Gel OR Gold, Clot Activator with Inert Gel | 4.0 mL | 1.0 mL |
| Preferred Micropuncture | Green Micro, Lithium Heparin with Inert Gel | 4 X 0.25 mL | 3 X 0.25 mL |
| Alternate Micropuncture | Gold Micro, Clot Activator with Inert Gel | 4 X 0.25 mL | 3 X 0.25 mL |
Instructions for Collection and Transport
Collect specimen 1 hour post ingestion of Glucola.
Centrifuge specimen ASAP. Specimen should be centrifuged within 2 hours of collection if not collected in a grey top tube. For specimens needing transport to a central lab, if collected in a non-gel grey top tube, aliquot plasma into plastic vial after centrifugation. Transport refrigerated on freeze packs. If holding overnight, aliquot serum/plasma from the clot/gel into plastic vial and refrigerate.
Aliquot Requirements
Plasma or Serum
Optimum 1.0 mL
Minimum 0.50 mL
Performing Lab
Chemistry Lab
Assay Frequency
24 hours
Routine Turnaround Time
1 day
CSR Storage Requirements
Centrifuge within 2 hours of collection and deliver to laboratory. If separated from cells, Glucose is stable for 2 days at room temperature and 7 days refrigerated.
CPT Code Information
82950
Patient Preparation
Ingestion of 50gm Glucola or as prescribed by physician, administered by Venipuncture Lab.