Doctor insights on:
How Long Does Cotinine Stay In Your Urine
Urine is the product of the kidneys, which is produced to eliminate the waste products of metabolism, manage body fluid balance, &maintain acid-base balance. The blood is first filtered by the kidneys, and the composition of the resulting fluid is then altered depending on the body's needs. It is composed of mostly water, and breakdown products from blood cells impart ...Read more
About a week: Cotinine has an in vivo half-life of approximately 20 hours, and is typically detectable for several days (up to one week) after the use of tobacco. Cotinine levels <10 ng/ml -non smoker 10 ng/ml to 100 ng/ml are associated with light smoking or moderate passive exposure and levels above 300 ng/ml are seen in heavy smokers. ...Read more
I hadn't smoked for 10 months. I smoked 2 packs of cigarrettes in 8 days. How long will cotinine be in my salvia, urine, and blood if I quit now?
Can be a week or 2: Please stop now. It is very harmful and you were doing so well. ...Read more
If I am taking a cotinine urine test and smoked approximately a week before the test, and for about 6 years, will I pass fail?
My last smoke was jan 25 and I have my nicoten test for work. Tomorrow feb 7th should my urine be cleen of cotinine to pass ?
That depends on the: Amount & duration you smoked, how deeply you inhaled, whether the cigarettes were mentholated, your genetic set-up for the enzymes in your liver that metabolize nicotine, & whether you're a passive smoker at home or work. You may still have low-moderate amounts of cotinine in your urine. ...Read more
No: If you are not using nicotine in the heating chamber, and you haven't smoked tobacco in the last week, your test should be negative. I would point out that the safety of the propellant in these e-cigs (propylene glycol), as well as flavorings and additives, have never been subjected to study, and we simply do not know their long-term safety/dangers.They are likely safer than smoking tobacco though ...Read more
I have been smoking 8-10 cigarettes for last 10 years.I have a urine cotinine test in 20 days. Will I test Negative if i quit smoking 10 days before the test?
Cotinine: Levels of cotinine detected in urine vary due to a variety of factors including; the type of tobacco used, filtered vs. non-filtered cigarette, how heavily the individual inhaled the smoke, the length of time an individual chewed, the number of cigarettes smoked per day, and the concentration of the urine. These variables make it difficult to determine exactly how much an individual uses tobacco. ...Read moreSee 1 more doctor answer
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