Re: Worried now - no mercury in urine with chelation!---DDI

June 17, 2008

It's more complicated than just being reputable. Some tests are harder to do

than others. Metamatrix is a very good lab - but their porphyrin test is often

wrong. You really have to know something about the characteristics of the

particular test. You should read something about Andy's attempt to make sense

of the Genova plasma cysteine test (used to be GSDL plasma cysteine). The guy

asks questions about and really knows all about the details of handling - it's

remarkable. He concluded that the test wasn't interpretable - and he saw that

clinically. He thinks the Genova plasma sulfate test is probably ok.

That's just an example - each test has to be taken in it's own right.

Dave

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Posted by: " Darren " xbluehens@... xbluehens

Thu Jun 12, 2008 9:08 pm (PDT)

Thanks for responding, .

I thought Doctor's Data was considered a very reputable lab. Is that

just for hair testing?

Doctor's Data says that their detection limit for mercury is somewhere

between .1 and 3 parts per billion. (Upper bound takes into account

sampling variation.)

Since my tests came back with results below the detection limit,

during that round I guess I was only excreting 3 (or less) parts per

billion. Do we have any idea if that's sufficient for successful

chelation? Hopefully ALA is doing the bulk of the work by increasing

biliary excretion.

It's not that Doctor's Data can't pick up mercury when it's plentiful

in urine, as many people on these forums have reported very high

readings with urine-provoked challenge tests. My reading last summer

was off-the-charts, but I think it was because I still had amalgams

in, thus my current exposure was very high.

Thanks again,

Darren

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