There is a procedural error that nearly every Medical Doctor makes that screws up their ability to measure Mercury in a patient.  This is important because MD's weigh test results very heavily and if they are getting false negatives on something this important, well, we have a problem.

When our bodies are exposed to Mercury our body does it's best to sequester the Mercury and put it into connective tissue like muscle, fat, and miscellaneous tissue.  It does this to protect the nervous system.  Mercury doesn't roam in the blood for long or it would surely cause grievous injury to the body.

Because of this Mercury levels are notoriously low in random Mercury blood tests.  They should be, it's physiologic for the body to get that stuff out of the blood.  Consequently, an MD reading the test findings may incorrectly assume that all is well.

What is needed is something called a provocation test.  This means that the patient is given a chelating agent.  Something known to bind to Mercury and other heavy metals and draw them out of the connective tissue.  ONLY THEN CAN MERCURY IN THE BLOOD BE ADEQUATELY MEASURED!  If you aren't doing this very important step then your testing incorrectly!

If you suspect that you or your child might be dealing with a Mercury toxicity-related issue please make sure your provider does this Provocation Test first to accurately measure the levels of Mercury.  Viable Chelating Agents are DMSA or DMSP (which must be administered by IV).  Testing periodically from this baseline can help determine how well your Chelation Treatment is progressing.