How long does it take for nicotine to leave your bloodstream in order to pass a medical exam?

Answer 1

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.

How does your body get rid of nicotine? Here's the process:


About 80 percent of nicotine is broken down to cotinine by enzymes in your liver.

Nicotine is also metabolized in your lungs to cotinine and nicotine oxide.

Cotinine and other metabolites are excreted in your urine. Cotinine has a 24-hour half-life, so you can test whether or not someone has been smoking in the past day or two by screening his or her urine for cotinine.

The remaining nicotine is filtered from the blood by your kidneys and excreted in the urine.

Answer 2

Nicotine on a medical exam? Not sure why they would check for that, but they say all the nicotine in your body gets out of your bloodstream 72 hours after you smoke your last cigarette or use your last patch/piece of gum. That's what they tell people who are trying to quit -- it's the psychological addiction that's tough to break.

Answer 3

I've never heard of a medical exam that checks for nicotine. What if you quit and are using the patch?

Anyway... Nicotine doesn't stay in your system long. That's why smokers light up so often. Quit for a day before the test. If it still comes back positive tell them you live with a smoker and it's all from second hand.

Answer 4

For Nicotine itself in a minimum of 3 day. However the Metabolite of Nicotine, Contitine, it can take up to 2 weeks.

Answer 5

months, maybe years depending how long you used it , or never

Mummies in Egypt had nicotine found in their tissue

Answer 6

I heard it takes 3 months, but I honestly don't know. You must be trying to get health insurance! Try taking blue-green algae pills and also AZO, which is cranberry. Those will help your body cleanse itself.