Cotinine: Is a metabolite of nicotine and can be present in the blood for up to 2 weeks before dropping. It can also distinguish between active users and those who have been passively exposed
Answered 11/28/2017
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May not pass: “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/
Answered 8/28/2019
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