most helpful answer it's highly doubtful anyone would absorb a meaningful amount of nicotine in the manner you describe. while it is possible to absorb nicotine through the skin (like with nicotine patches) merely coming into contact with tobacco probably would not cause a positive nicotine test. nicotine patches contain components that facilitate (aid in) the absorption of nicotine by the skin. that's necessary because the skin is a barrier that works at blocking substances that try to cross into the deeper tissue which includes the blood vessels. without help many substances (such as nicotine and hormones which also can be delivered via a patch) simply settle on the surface of the skin until they're washed off. hope this helps! found out from the american society for clinical laboratory science that the amount of nicotine absorbed by skin depends on how much was absorbed and how long it was on the skin. a level of 54 (which is what the test came back) indicates some exposure but much less than that of a tobacco user. most patients using tobacco products excrete nicotine in urine in the concentration range of 1 000 to 5. 000 ng/ml.
accidental nicotine absorption through the skin. if a janitor is cleaning a locker room and comes in contact and actually gets tobacco chew on his arm could he test possitive for having nicotine in his system? . .