Cortana may refer to: 1  Cortana (software), Microsoft personal assistant software. 2  Cortana (Halo), a fictional artificial intelligence character. 3  Cortana (gastropod), a gastropod genus.  Cortana, or Curtana, a ceremonial sword used in the coronation of British 1  monarchs. Cortana Mall, Baton Rouge, Louisiana,  USA.
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.
Cotinine is usually detected in the blood tests for 1 to 3 days after last use of products containing nicotine like snuff, cigarettes, nicotine gum or patches, etc.This detection time frame can differ as per the intensity of nicotine use, the personâs age, and other factors as discussed above.n light smokers, cotinine and its levels can be detected for 2 to 3 days; in medium smokers for around 5 days; and in heavy or addicted smokers, for 10 days or more. Cotinine can remain in the system for more than 10 days in people who chew tobacco. Sponsored link.