question: Can a child 20 months old have levels of meth at around 2800 ng/ml and still be an active normal happy baby. My child has never been in direct contact with the drug and if any contact ever existed it would have been through touchbof skin with a family member who was using. That is the toxicity level enough to kill an adult correct. And if by mistake it was really only 28 ng/ml then would that be enough even for concern enough to not allow that person around the child.