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Tests for Vitamin D

111 pages in Testing for Vitamin D category
Vitamin D testing: Facts and VitaminDWiki Opinions
  • Fact: Many countries no longer pay for more than 1 or even any Vitamin D tests
      They feel that vitamin D testing is not needed except for a few conditions
  • Fact: Vitamin D tests are not very accuracte/consistant: typically +- 5 nanograms
  • Opinion: Home blood spot tests have similar accuracy/repeatability as the lab tests
  • Fact: Low cost vitamin D tests are coming, but are not available in the US yet
       Low-cost Yes/No test by Nanosys is available outside of the US ($15 - $25)
  • Fact: 3 major gene problems are not noticed by standard Vitamin D tests
       ~ 20% of Vit D tests show OK levels in blood when genes restrict VitD getting to cells
       Hint that Vit D not getting to cells: Vit D related diseases run in your family
  • Fact: A vitamin D test will rarely (<1 in 1000) indicate that you are getting too much
  • Opinion: If only getting a single test, wait till after supplementing with Vit D
       3 months after starting a maintance dose or 4 weeks after a loading dose

See also
Low cost vitamin D Blood Tests
Quick, free, self test of vitamin D deficiency not quantitative
10 Most-visited pages in Test Vitamin D category

Id Page Hits Last modification Creator Categories
2095 Quick, free, self test of vitamin D deficiency 119306
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266 Low cost vitamin D Blood Tests 82810
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5136 Warning – Medicare will pay for just 1 vitamin D test PER LIFETIME (if not related to a few diseases) 22339
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2694 VA showed increased vitamin D testing associated with lower health costs - Lancet May 2012 10384
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1686 Hypothesis – Optimize vitamin D at home by measuring excess Calcium in urine 7650
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2022 Consultation to medical professionals on Vitamin D Testing - Sept 2011 7509
24 Mar, 2012 13:43
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Overview for doctors
3859 Instant vitamin D Yes-No test now available 6248
13 Oct, 2017 00:59
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6554 Active Vitamin D (Calcitriol) reference ranges, why too high is a problem– April 2015 5972
26 Jul, 2015 15:45
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1013 6th Canadian province may stop paying for vitamin D testing – Sept 2010 5857
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Vitamin D Far from equator
3814 Tests for Vitamin D 5826
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Category

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