How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Deborah Your Own Question
Deborah, Nurse (RN)
Category: Health
Satisfied Customers: 3217
Experience:  Registered NP - Multispeciality
Type Your Health Question Here...
Deborah is online now
A new question is answered every 9 seconds

How can i get nicotine out of my system quickly?

Customer Question

how can i get nicotine out of my system quickly?
Submitted: 11 years ago.
Category: Health
Expert:  Deborah replied 11 years ago.

Nicotine doesn't stick around your body for too long. It has a half-life of about 60 minutes, meaning that six hours after a cigarette, only about 0.031 mg of the 1 mg of nicotine you inhaled remains in your body.
Customer: replied 11 years ago.
Reply to Deborah's Post: what i really need to know is if there is a blood test or urine test that can detect if you smoke, and does it have to be done shortly after smoking about how long before the test are not valid
Expert:  Deborah replied 11 years ago.
Cotinine is a chemical that is made by the body from nicotine, which is found in cigarette smoke. Laboratory testing will detect cotinine within hours after you've had a cigarette.

The American Lung Association says that nicotine disappears from your blood stream and your urine within 72 hours after smoking your last cigarette.

Deborah, Nurse (RN)
Category: Health
Satisfied Customers: 3217
Experience: Registered NP - Multispeciality
Deborah and 4 other Health Specialists are ready to help you
Customer: replied 11 years ago.
Relist: I prefer a second opinion.
how long after smoking does the nicotine leave your blood stream?
Expert:  Shelia replied 11 years ago.

Nicotine stays in blood for 1-2 days.

If I have answered your question to your satisfaction please click on accept.

Expert:  Family Physician replied 11 years ago.
Cotinine is the metabolite most frequently used to screen for smoking since it has a longer half life than nicotine in the body.

Generally, the detection period ranges from 7-10 days, and depending on the sensitivity - possibly up to 14 days.

BE AWARE: Cotinine detects exposure to nicotine - and does NOT differentiate between smoking, chewing snuff, or even the use of nicotine replacement products such as the patch or gum.

The previous experts answer is indeed correct, HOWEVER, in the context of testing for smoking (insurance companies etc) - they are much more likely to be checking cotinine - and the detection period is probably closer to 7-14 days. (If you have significant passive smoke exposure, you will run slightly higher levels, which might extend the detection window a day or two. Passive smoke should not by itself cause a level to be high enough to be above the cut-off for "smoker" in someone who NEVER smokes)