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A female asked:

i stopped smoking cigarettes about 2-3 weeks ago, i did a urine drug test with quest diagnostics will my urine test positive for nicotine/ cotinine?

2 doctor answers5 doctors weighed in
Dr. Rex Mahnensmith
A Verified Doctoranswered
A US doctor answeredLearn more
Urine nicotine: Data show that urine can still test positive for 10 to 15 days, and even 20 days in some. Urine can test positive for 20-25 days for cotinine.
Dr. Heidi Fowler
Psychiatry 25 years experience
Possibly: “When someone stops using tobacco & nicotine products, it can take more than 2 weeks for the blood level of cotinine to drop to the level that a non-tobacco user would have & several weeks more for the urine level to decrease to a very low concentration.” REF: http://labtestsonline.org/understanding/analytes/nicotine/tab/test/

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Last updated Aug 27, 2019

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