Ask your Dr, read up: Methylenetetrahydrofolate reductase is a gene that has several different common alleles. Some of these raise homocysteine levels in that blood and these in turn may have something to do with the tendency to get deep vein thrombi & atherosclerosis. This fancy test discovers huge numbers of people with tiny variations when it's very unlikely that information will guide rx or reflect a real problem.
Answered 4/17/2013
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