- Test code
- VIT-D
- Sample type
- Blood sample
- Fasting
- No fasting needed
- Result time
- Within 24 hours
- Home sampling
- Available
- Reference range
- 30 – 100 ng/mL
25-hydroxy vitamin D is the right measure of your vitamin D stores. Under 20 is deficient, 20–30 insufficient and 30–100 adequate.
Signs of deficiency: bone and muscle aches, tiredness, hair loss and frequent colds. Your doctor sets the dose from the result, and the test is repeated after 3 months of treatment.
Preparation before the test
- No fasting needed; it can be done any time.
- If you take vitamin D, tell your doctor the dose and since when.
This information is for awareness only and is not a substitute for medical advice — your treating doctor interprets the result for your case.
