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A member asked:
What do you advise if i smoke a pack a day how long before cotinine is out of my blood so i can pass a blood test?
A doctor has provided 1 answer
3-4 days: at most. Nicotine is a short-acting drug, and is metabolized into cotinine, which can be detected in blood for 1-2 days, in urine 3-4 days at most. More important than passing the "smoking" drug test is QUITTING TOBACCO. I encourage you to strongly consider getting into a formal tobacco cessation program.
Answered 3/4/2018
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