My company has an annual Health Assessment and among other intrusive things, they require a blood test for cotinine which is the metabolite of nicotine. They don't care if you smoke cigarettes, cigars, hookah, vape, or tree limbs. If your blood test is positive for cotinine, you are considered a "smoker' and you pay higher health care premiums. Two weeks of 0 nic, blood test, negative results, and right back to 3mg for another year!