Vitamin D3 blood test kit

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Check to see if you're one of the over 10 million people within the UK who suffer from vitamin D deficiency. Vitamin D is essential to support immunity, strong bones and muscle function.

This test checks your stored D3 and D2 levels which represents the most effective marker for checking deficiency.

  • Easy to use home vitamin D test kit
  • Accurate and detailed vitamin D results
  • Analysis carried out by City Assays laboratory

We send the testing kit out for you to use at home. All you must do is place four blood spots onto the collection card from a quick and painless prick of your finger. Full instructions are included in the pack you will receive.

Using the prepaid envelope, the collection card is then sent to City Assays, who analyse the sample for Sandwell and West Birmingham trust.

From the spots of dried blood on your sample card, the laboratory at City Assays uses a liquid chromatography mass spectrometry method to measure the Vitamin D in your blood. They measure for Vitamin D2 and D3, reporting the total and D2 and D3 results.

The results are supplied within 7 working days of the lab receiving your sample.

The results are emailed directly to you.

This test is not a substitute for seeing a doctor. If you are at all unsure about your results, please consult your doctor or medical professional. 

For extremely low or high levels, a member of the Sandwell and West Birmingham Trust will be in contact with you to discuss your results.

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