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A 43-year-old member asked:

When after you quit smoking will it show up in blood or urine test?

1 doctor answer4 doctors weighed in
Dr. Ravi Chand
Psychiatry 27 years experience
Smoking: Nicotine does not show up in urine test marijuana usually 7 days chronic users may be 30 days.
Dr. Luis Villaplana
Internal Medicine 36 years experience
Nicotine and it's metabolites may stay in blood as long as 3-4 weeks
Aug 21, 2013

Similar questions

A 31-year-old member asked:

When after you quit smoking cigarettes will it show up in blood or urine test?

1 doctor answer1 doctor weighed in
Dr. Hermilando Payen
57 years experience
Very Variable: If you quit smoking, your tissues can quickly recover from the damage especially if you have been eating foods with lots of antioxidants like red, orange, yellow fruits and same color plus green leafy vegetables...So the cancer cells may not develop at all unless you have a strong family history of cancer and your immunity has been severely compromised.
Anoka, MN
A 28-year-old female asked:

How long after quit smoking will i pass a urine test?

1 doctor answer2 doctors weighed in
Dr. Lynne Weixel
Clinical Psychology 37 years experience
Tobacco or pot?: In either case - time varies w/ heaviness or use. Long term heavy use of cigarettes 1 - 2 wks to not show. Nearly daily pot can take 2 mths, a few times a week 1 mth, a few times a month 3 wks and a one time only use up to a week.
Last updated May 2, 2016

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