A member asked:

Ive been smkg a pack a day for over 10 years. i am obese, and just quit cold turkey. how long until i can pass a cotinine blood test?

A doctor has provided 1 answer

Urine test: Cotinine test is usually done on urine and it is expected to clear in 2-3 days after use of tobacco.

Answered 1/31/2019

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Can quitting smoking cold turkey cause blood in the stool?

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