If you are being: Tested, and you know you are being tested, then why would you smoke a cigarette? Most insurance companies and others who test for nicotine use urine rather than blood, but in any case a single cigarette would give you metabolites in blood for a handful of hours, and at most a day. You need to look at your impulsivity and judgment if you get tested regularly and still do it. Counseling might help.
Answered 12/28/2015
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