A member asked:

I have surgery in 15 days they want me to be nicotine free no nicotine in my blood would it be possible to not have nicotine in my blood

2 doctors weighed in across 2 answers
Dr. Douglas Arenberg answered

Specializes in Pulmonary Critical Care

Yes: Don't smoke. Best way to not have nicotine in your blood is to not put any there. Talk to your docotor to get help stopping.

Answered 9/17/2012

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Dr. Heidi Fowler answered

Specializes in Psychiatry

Possibly. : What is your usage? “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/

Answered 8/27/2019

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