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Old 03-07-2010, 03:42 PM   #10
Katigre
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Why thank you, it is naturally blue...
 
Join Date: Mar 2005
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Default Re: Vitamin D FAQ :)

What do you know about the controversy about the accuracy of Vit D3 tests? I just read an article about that here and it gives me pause about trusting the test results to be accurate and whether it's even worth doing:

Quest Labs Acknowledges Errors in Vitamin D Tests

Quote:
Originally Posted by Article Excerpt
Many laboratory tests, including Quest’s vitamin D test, do not require approval from the Food and Drug Administration.

The incident also raises questions about vitamin D testing, which has surged because studies have suggested that a deficiency of the nutrient raises the risk of bone weakness, cancer, heart attacks, autoimmune diseases and other illnesses. Quest and other laboratories have reported that in some cases test volumes had nearly doubled from one year to the next. Medicare pays about $40 for a vitamin D test, though doctors say some of their patients were billed as much as $200 for the Quest test.

But experts say that so far there is no standardization of the tests, meaning that results can differ considerably from one laboratory to another.

That can make it hard for doctors to decide on treatment and for experts to compare studies aimed at determining the optimal level of vitamin D in the blood. “If you get your vitamin D level measured in the Mayo Clinic, the Cleveland Clinic and the Timbuktu Clinic, it would be nice if it came out the same value,” said Dr. Neil C. Binkley, associate professor of medicine at the University of Wisconsin.
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