A member asked:

How long after i stop smoking will i pass cotinine pre employment test?

A doctor has provided 1 answer
Dr. Peter Kurzweil answered

Specializes in Internal Medicine

Within a few weeks: Urine testing for nicotine should be negative after a couple of weeks. Urine testing for thc (marijuana) will stay positive for about a month after one joint.

Answered 10/20/2015

4.9k views

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