urine tests for T3, T4 and Iodine and minerals

[crimple]

Hi has anyone used Genova's urine test which checks T4, T3 and Iodine levels? Do the results equate to blood tests for the same?

I am also looking at Genova's mineral profile which will tell me how Selenium, Zinc and Magnesium levels + other things are doing. Any comments positive or negative would be very welcome. Seems easier than trying to find a vampire to take yet more blood from me. The tests are expensive enough without adding on phlebotomy fees. Thanks for your help.

[diogenes Remembering]

This researcher doesn't think that urinary T4 is equated to FT4 and isn't reliable in diagnosis. Personally I think urinary T4 is a crude estimate compared with direct blood tests. After all there isn't a kidney in the way of the test and one can't assume that the organ's activity doesn't have some sort of distorting effect as a filter.

WM Wiersinga Ned Tijdschr Geneeskd. 2007 Dec 22;151(51):2813-5. [Determining the thyroid hormones T3 and T4 in the urine: an unreliable test for hypothyroidism].