| 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) | See Report |
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 required?:
In Gray-top Tube: No In SST: Yes, within 1 hour of collection Fasting required?: 12 hours recommended, not required Special Instructions: Please indicate if the patient is fasting. |
Clinical Utility
A two hour post prandial glucose (taken after a meal) is sufficient to diagnose or exclude all forms of diabetes mellitus at all but the earliest stages of development.
|
CPT Codes
82950
|
Related Materials |