It is Doctor's Data 24 hours urine toxic metals. It is well explained on the web site. My environmental holistic doc told me to take this test because he doesn't believe my candida krusei 2+ can alone explain my symptoms.
He told me that no one can get candida issue without urderlying causes. He told me that more than 50% of the cases who are not due to diabetes or HIV, are due to heavy metals.