We have not had that test done. The hair test is a good one to do. Becuase if it shows high in "Lead", have your doc put lead toxicity on the paperwork and insurance usually will cover a lot of chelation tests for lead toxicity. The dmsa is an approved drug for lead, but also works on many metals! and ala you can get over the counter. (we get lucky there). A good place to get hair tested is Doctors Data. The URL is: