All tests · Glucose & Diabetes
Glucose & Diabetes
Normal range 70-99 mg/dL (3.9-5.5 mmol/L SI). Specimen: Serum or plasma (fasting).
Also known as: FBS, fasting blood sugar, FPG.
Combined adult band. LabVals does not publish separate men's, women's, or pediatric ranges for Glucose, Fasting; those can be narrower than the band shown.
| Specimen | Serum or plasma (fasting) |
|---|---|
| Conventional range | 70-99 mg/dL |
| SI range | 3.9-5.5 mmol/L |
| Conversion factor | ×0.0555 (conventional → SI) |
| Critical value | < 50 or > 400 mg/dL |
| Panel | Glucose & Diabetes |
Convert any Glucose, Fasting result between units on the unit converter.
The standard teaching reference range for Glucose, Fasting is 70-99 mg/dL in conventional units, or 3.9-5.5 mmol/L in SI units. This value is measured in serum or plasma (fasting).
For Glucose, Fasting, the commonly taught critical (panic) value is: < 50 or > 400 mg/dL. Critical results are reported to the provider immediately under your facility's policy.
Source: Adult reference values compiled from Pagana & Pagana, Mosby's Diagnostic and Laboratory Test Reference, and Fischbach & Dunning, A Manual of Laboratory and Diagnostic Tests. Reference ranges vary by laboratory, method, age, sex, and population - always use the range printed on the actual result.
Above the range
Below the range
At the bedside
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