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Inflammatory & Other Chemistry
Normal range 30-100 sufficient (< 20 deficient) ng/mL (75-250 nmol/L SI). Specimen: Serum.
Also known as: 25-OH vitamin D, calcidiol.
Combined adult band. LabVals does not publish separate men's, women's, or pediatric ranges for Vitamin D, 25-Hydroxy; those can be narrower than the band shown.
| Specimen | Serum |
|---|---|
| Conventional range | 30-100 sufficient (< 20 deficient) ng/mL |
| SI range | 75-250 nmol/L |
| Conversion factor | ×2.496 (conventional → SI) |
| Panel | Inflammatory & Other Chemistry |
Convert any Vitamin D, 25-Hydroxy result between units on the unit converter.
The standard teaching reference range for Vitamin D, 25-Hydroxy is 30-100 sufficient (< 20 deficient) ng/mL in conventional units, or 75-250 nmol/L in SI units. This value is measured in serum.
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
What causes a high Vitamin D, 25-Hydroxy? Read as its own page
Below the range
What causes a low Vitamin D, 25-Hydroxy? Read as its own page
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