1,25-Dihydroxyvitamin D
A vitamin D test measures the levels of vitamin D in your blood. Vitamin D helps your body absorb calcium to build healthy bones and teeth. It also helps keep your muscles, nerves, and immune system working normally. Having vitamin D deficiency (very low levels of vitamin D) can lead to bone disorders and other medical conditions.
A vitamin D test is used to check the levels of vitamin D in your blood. The test is usually done if your health care provider thinks that a bone or other health condition you have could be caused by very low vitamin D levels.
Source: MedlinePlus, U.S. National Library of MedicineNormal range
6 published ranges, each from a named source- Normal
- 15–79.3 pg/mL (varies by lab)ABIM 15–60 · ARUP 19.9–79.3 pg/mL
- Female · 16 y+
- 18–78 pg/mL
- Male · 16 y+
- 18–64 pg/mL
These labs do not agree: the published adult ranges differ by up to 33%, so the same result can read as normal at one lab and be flagged at another — ABIM 15–60 · ARUP 19.9–79.3 pg/mL. Both are real published values, shown as each lab states them.
Ranges from ARUP Laboratories Test Directory, American Board of Internal Medicine (Laboratory Test Reference Ranges), Mayo Clinic Laboratories (Pediatric Test Catalog).All source ranges (6)
| Source | Sex | Age | Range |
|---|---|---|---|
| American Board of Internal Medicine (Laboratory Test Reference Ranges) | All | all ages | 15–60 pg/mL |
| ARUP Laboratories Test Directory | All | all ages | 19.9–79.3 pg/mL |
| Mayo Clinic Laboratories (Pediatric Test Catalog) | Female | ≤ 16 y | 24–86 pg/mL |
| Mayo Clinic Laboratories (Pediatric Test Catalog) | Female | 16 y+ | 18–78 pg/mL |
| Mayo Clinic Laboratories (Pediatric Test Catalog) | Male | ≤ 16 y | 24–86 pg/mL |
| Mayo Clinic Laboratories (Pediatric Test Catalog) | Male | 16 y+ | 18–64 pg/mL |
- Sample
- Serum or plasma · LOINC
- Code
- LOINC 62290-2 · pg/mL
- Also known as
- Dextro