How long does it take to get rid of nicotine out of your blood system?

20-24hrs: Nicotine will stay in your system from 20 -24hrs.

Cotinine: “When someone stops using tobacco and nicotine products, it can take more than two weeks for the blood level of cotinine to drop to the level that a non-tobacco user would have and several weeks more for the urine level to decrease to a very low concentration.” REF: http://labtestsonline.org/understanding/analytes/nicotine/tab/test/