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.
It depends on how fast your liver metabolizes the full amount of nicotine present in the blood. The amount of nicotine in the blood drastically declines after 3 to 12 hours as the liver metabolizes it. However, tiny traces of nicotine may stay in the blood up to 3 days after you quit using tobacco.