Comparing vitamin D tests from different blood samples
This study compares vitamin D levels measured from three different blood sampling methods to see if a simple upper-arm device is as good as a finger-prick or standard blood draw. It may help make future vitamin D testing easier and less painful.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are 18 years or older.
- You are a current healthcare staff member or staff volunteer.
- You have already agreed to use the routine dried blood spot vitamin D service.
- You are willing to give all three types of blood samples: a finger-prick, an upper-arm sample, and a blood draw from your arm.
- You can give informed consent and complete a short questionnaire in English.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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