| Specimen Type | Specimen Stability | Reference Range |
| Gray-top Tube (preferred) or SST - Serum | In Gray-top Tube: 1 day refrigerated In SST: 3 days refrigerated (draw one tube per specimen) | 65-140 mg/dL |
Specimen Requirements
Preferred amount: 1.0 mL Serum Minimum amount: 0.5 mL Serum
|
Method
Enzymatic
|
Schedule
Mon-Fri
|
Turn-Around Time
24 hrs
|
Instructions/Notes
Centrifuge SST within 1 hr of collection. No centrifugation needed for Gray-top Tube. 12 hours fasting recommended, but not required. Special Instructions: Please indicate if the patient is fasting. Complete the Glucose Testing Information Form.
|
Clinical Utility
To screen for all forms of diabetes mellitus, but not those that are in the earliest stages of development.
|
CPT Codes
82950
|
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