Is it possible to get a false negative on a zinc toxicity test? i had zinc, copper and lead testing done. my zinc results in blood and urine were at the high end of normal. my lead was negative but my copper results came back as low. i have all of the

Any : Any test has a risk of being a false negative or even false positve for that matter. Heavy metal toxicity/poisoning is a very difficult issue, and has been a challenge for a lot of doctors. I recommend you consult a medical toxicologist. These doctors specialize in poison and metal toxicity. If you have already done so, i suggest a second opinion by another doctor in the field. Good luck.

It’s possible: However your test results are probably accurate. One of the “unintended consequences” with zinc supplementation or naturally high levels of zinc, is the inhibition of copper, so it leads to low copper levels which is exactly what your lab results show! If you are taking zinc supplements I would discontinue this.