| Ordering Code | 176 |
|---|---|
| Test Name | Glucose |
| Alias | Gluc Blood Sugar |
| Preferred Specimen | Serum Note: If specimen cannot be properly processed within 1 hour of collection, collect blood in Oxalate/Fluoride (Gray) |
| Preferred Container | SST (Gold) |
| Other Specimen/Container | Plasma in Sodium Fluoride-Potassium Oxalate (Gray), Plasma in Lithium Heparin (Green-PST), Plasma in Lithium Heparin (Dark Green-PP No Gel), Serum in Plain (Red) |
| Optimum Volume | 1 mL |
| Collection Instructions | Fasting specimen preferred but not required For a fasting glucose level, patient must be fasting for a minimum of 8 hours. |
| Handling Instructions | If specimen cannot be properly processed within 1 hour of collection, collect blood in Sodium Fluoride-Potassium Oxalate (Gray) All other specimen types must be centrifuged within 2 hours of collection. If no gel separation present in tube and testing is delayed, plasma/serum is aliquoted from cells within 2 hours of collection. |
| Transport Requirements | Oahu: Refrigerated Airline: Refrigerated |
| Specimen Stability | Ambient: 8 Hours Refrigerated: 3 Days Frozen: 3 Months (Aliquot) Frozen samples should be thawed only once Unprocessed Sodium Fluoride-Potassium Oxalate (Gray) blood is stable 3 days ambient. |
| Rejection Criteria | Specimen older than stability limits, Grossly hemolyzed, Insufficient quantity, Unprocessed within allowable time limit |
| Avail. Stat | YES |
| Analytic Time | 1 Day |
| Methodology | Hexokinase - UV/NAD |
Reference range(s)
The reference ranges listed below are valid on this date of November 22, 2025.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| Glucose | >=5M | 70-99 | <= 50 | >= 400 | 70-99 | >= 400 | <= 50 | mg/dL | |
| Glucose | 2D-4M | 70-99 | <= 60 | >= 300 | 70-99 | >= 300 | <= 60 | mg/dL | |
| Glucose | 1D-2D | 50-80 | <= 49 | >= 300 | 50-80 | >= 300 | <= 49 | mg/dL | |
| Glucose | 0-1D | 40-60 | <= 39 | >= 300 | 40-60 | >= 300 | <= 39 | mg/dL |
