Vitamin D 25-hydroxy blood test
Short answer
The vitamin D 25-hydroxy blood test measures your main circulating vitamin D storage form for clinical interpretation.
This answers one question. It is not a diagnosis and does not replace an assessment by a licensed doctor.
At a glance
- Full name
- 25-hydroxyvitamin D
- Sample
- Venous blood sample
- Meaning
- A measure of vitamin D status
What the test measures
25-hydroxyvitamin D is the form usually assessed when a clinician wants to understand vitamin D status. The report includes a value and a laboratory reference range; units and categories can differ between laboratories. A low or high finding must be interpreted with your symptoms, diet, supplements, kidney and liver health, and the reason for testing.
Preparing and responding
Ask the laboratory whether any preparation is needed and tell the clinician about every supplement, including combination products. If the result is outside the expected range, follow the recommended plan rather than changing the dose independently. Follow-up may involve repeat blood work or checking related bone and mineral health, depending on your situation.
When to seek care
Seek prompt advice for persistent bone pain, unexplained muscle weakness or a suspected fracture. Get urgent help for confusion, severe vomiting, marked thirst or symptoms after taking an excessive supplement dose.
Questions for your doctor
Ask why this test was selected, what your laboratory range means, whether your medicines or supplements matter, and what follow-up is planned.
Find care
General Clinics & Polyclinics in Abu Dhabi
That answer is general. If you want it applied to your own case, these are licensed general clinics & polyclinics listed in Abu Dhabi.
27 Ar Ruwwad St - Shakhbout City - MSH4 - Abu Dhabi - United Arab Emirates
Accepts: Daman, Thiqa, Cigna, MetLife +20 more
Al Ruwais, Al Dhafrah
Accepts: Daman, Thiqa, AXA, Cigna +16 more
Al Bahyah - Al Bahyah Old - Abu Dhabi - United Arab Emirates
Accepts: Daman, Thiqa, Cigna, Allianz Care +18 more
Abu Dhabi
Accepts: Daman, Thiqa, AXA, Cigna +27 more
Ordered by verification status and how complete each clinic's public record is, then alphabetically. This is a directory listing, not a ranking — Zavis does not rate or recommend providers.
A factual listing drawn from the DHA, DOH and MOHAP licence registers. It is not a referral, an endorsement, or advice that any of these providers is right for you.
Questions people ask
Is 25-hydroxyvitamin D the same as vitamin D?
It is the main blood measurement used to assess vitamin D status, rather than a separate condition.
Can the result be interpreted without the reference range?
It is better interpreted with the range printed by that laboratory and your personal clinical context.
Related
Related reading
Keep reading
Medical disclaimer. This page is general health information, not medical advice, and it cannot diagnose you. Always consult a licensed healthcare provider about your own symptoms and treatment. In an emergency in the UAE, call 998 for an ambulance.