Vit Dblood
Vitamin D (25-OH)
Measures the level of vitamin D, important for bone health.
What it measures
The 25-hydroxy vitamin D level in your blood.
Why it is ordered
To investigate bone pain, weakness or fatigue.
How to prepare
No special preparation needed.
What happens during the test
A blood sample is drawn from a vein.
Normal ranges
| Group | Normal range |
|---|---|
| Deficient | ≤ 20 ng/mL |
| Sufficient | 30 – 100 ng/mL |
| Insufficient | 20 – 29 ng/mL |
Ranges vary slightly between laboratories.
What abnormal results may mean
Low vitamin D is very common and may cause bone and muscle problems.
Related conditions: Vitamin D deficiency, Osteoporosis
Related tests: Serum Calcium
⚠️ Important: Abnormal results do not mean you have a disease. Always discuss your results with your doctor.