We know mercury is hard to find in urine (without provocation). However, how accurately is lead excreted in the urine without a provocation agent? I was reading some sort of scientific paper and it says everyone excretes some lead in their urine. For the study they injected cancer patients with colloidal lead phosphate. They had a group of cancer patients in the same nursing home without injection and then a "healthy" group.

Their conclusions after collecting urine was that everyone had a normal average of lead excretion at 0.085mg. I guess my point of all this is that it doesn't look like lead excretes in urine. It is likely that the feces would show a better indicator.

The dangerous DMPS challenge test showed me having excreted 2.7ug/g which barely reaches into the elevated area. Therefore if I didn't use a provocative agent it would have likely be nearly undetectable. I think how low the results were shows that it won't be excreted in urine in large amounts.

I tested for lead in a hair analysis and went on a search in my house for the source. I knew it had to be in the house. Your SO should check the house(s) for lead exposures. My husband and I bought a handful of lead test kits at Lowes then started to test glazed plates, mugs, cookware. My lead exposure went back to our bathtub. For whatever reason, the coating on it (or lack thereof) was allowing lead and likely other metals to leach. It's pretty scary to think how much time I spent in that bathtub (4 years worth of bathing). My husband lived in the house even longer!

This is just some food for thought. I sometimes get a little out of hand when I begin researching something. I'm sorry to hear you have the neurological effects from mercury poisoning. I'm stuck with the autoimmune diseases.