The length of time nicotine remains in the blood stream depends on the amount consumed and the frequency of consumption. Nicotine 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.
The Color Blue. The color blue is the color of trust and responsibility. This color is one of trust, responsibility, honesty and loyalty. It is sincere, reserved and quiet, and doesn't like to make a fuss or draw attention. It hates confrontation, and likes to do things in its own way.
Authority: The darker the color blue, the more authority it has. Religion: Blue is the colour of devotion and religious study. Wisdom: Blue enhances the wisdom of the intellect. Effects of Blue. Conservative: The color blue is a safe colour - the most universally liked colour of all.