A member asked:

How does 1 cigarette per day affect the cotinine level? if user quits 24 hours before swab or urine test.

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

Continine: See: https://testdirectory.questdiagnostics.com/test/test-detail/90646/nicotine-and-cotinine-urine?cc=MASTER. "Cotinine, the major nicotine metabolite, has a half-life of 24 hours and is detectable for several days after cessation of tobacco exposure."

Answered 5/23/2020

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