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How long does tobacco test positive in a blood test after you quit smoking tobacco?

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If this is for a life insurance or health package, I believe they use quantification of saliva based cotinene (a tobacco smoke metabolite) This has a half life of 24 hours so give it a week and chemically smoking will not show up without expensive testing. There are of course other ways your doctor will be able to tell that you smoke however. If this is for a life insurance or health package, I believe they use quantification of saliva based cotinene (a tobacco smoke metabolite) This has a half life of 24 hours so give it a week and chemically smoking will not show up without expensive testing. There are of course other ways your doctor will be able to tell that you smoke however.
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How long does smokeless tobacco test positive in a blood test?

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Smoked pot yesterday mixed with tobacco after about 20-25 days and have to get blood test and urine test for anesthesia for a surgery what are the risks of getting caught?

The anaesthetist wont be particularly interested and would usually not be testing you for drugs in your system. A small amount of marijuana would probably not show up in any c