What it measures
- Vitamin D
- Calcium
- Phosphate
- Parathyroid hormone (PTH)
- Alkaline phosphatase (ALP)
Who it’s for
- Worries about osteoporosis, or a family history of it
- Menopause, or long-term steroid use
- Bone pain, or a fracture from a minor fall
- Low vitamin D or very little sunlight
How your bones stay strong
Your bones are constantly being broken down and rebuilt. Parathyroid hormone and vitamin D work together to keep calcium and phosphate in the right balance for this. If vitamin D is low, PTH rises to pull calcium out of your bones. If a parathyroid gland is overactive, the calcium in your blood goes up. ALP rises when bone is turning over quickly, for example after a fracture or with vitamin D deficiency.
What a blood test can’t show
A blood test can’t measure bone density. If you’re worried about osteoporosis, your GP can work out your fracture risk and may refer you for a DEXA scan. This test looks for treatable causes of weak bones, which is often the most useful first step.
How to prepare
- Drink a couple of glasses of water beforehand: it makes the sample quicker and easier to take.
- No fasting needed. Eat and drink as normal.
How it works at our Croydon clinic
Book online
Choose your test and a time that suits you. No GP referral needed.
A 15-minute visit
A trained clinician takes a small blood sample at 169 Shirley Road, Croydon. Tell us if you’re nervous.
Results in 1–3 days
A clear report showing each result against its reference range.
Next steps
Share your report with your GP, who can arrange NHS follow-up if anything needs it.
Questions
Can a blood test diagnose osteoporosis?
No. Osteoporosis is diagnosed with a DEXA scan. This test checks for treatable causes such as low vitamin D or parathyroid problems.
Should I choose this or the Vitamin D test?
They cost the same, and this one includes vitamin D plus four bone markers, so it’s usually the better-value choice.
How much is a Bone Health Test in Croydon?
£70 at our clinic at 169 Shirley Road, Croydon, including taking your blood sample and your report.
How quickly will I get my results?
Usually within 1 to 3 days, in a clear report showing each result against its reference range.