how long does it take to flush nicotine out of your system
Blood Test. Testing for nicotine shows that nicotine is detectable for 1 to 3 days. It is common to test for cotinine instead of nicotine, as cotinine is detectable in the system for up to 10 days after nicotine has been removed from your system.hen smoking only occasionally or you have a limited nicotine intake, the nicotine should be cleared out in 3 to 4 days. If you are a regular smoker, it may take 1-2 weeks; if you are a long time heavy smoker, it may take more than 20 days for a clean urinalysis test.