A member asked:

What can cause trace nicotine in urine test?

A doctor has provided 1 answer

If you are not a: smoker, I assume? Large amounts of second hand smoke, like in those who work in bars or restaurants where smoking is permitted, can cause positive urine cotinine tests (nicotine is not what is tested for, but its metabolite cotinine).

Answered 7/12/2015

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How long does nicotine remain in urine for a nicotine drug test?

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