how long does cotinine stay in your bloodstream
Generally, it takes about 72 hours from the last use for other nicotine by-products to leave the system. Yet cotinine remains in the system for as long as four days. Cotinine can also remain for several months, depending on how much tobacco was smoked and the length of time the user has smoked.icotine can stay for 48 hours. Beyond this time it is not detected either in the blood or urine. However, the cotinine metabolite can leave traces for about 7 days. There are some people who have anomalies in their genes that trigger the slow metabolism of cotinine.
The length of time that nicotine stays in the body and cotinine can be a reliable indicator of nicotine use depends on the amount of tobacco smoked, the number of years smoking tobacco, and the type of nicotine test performed. It can be as short as 2 days, or as long as 3 months.Both qualitative and quantitative blood tests can be used to detect nicotine use. Either blood nicotine levels or its presence or absence can be determined. Nicotine, along with its derivatives cotinine and anabasine, can be used for these blood tests.hese tests can detect even the slightest traces of nicotine in the bloodstream. How Long Does Nicotine Stay in your Blood. Nicotine is metabolized into cotinine, which then admixes with blood. Liver detoxification then takes place, facilitating removal of toxins from the blood.