I had 1 cigarrete march 01, i have cotinine test on march 10 will i pass it?

Nicotine test: If it was only 1 cig. Usually cotinine will leave your body withing 2-4 days

Most likely.: Assuming you weren't a heavy smoker before your last cigarette, urine cotinine will either be undetectable or below the cut off value of 200 ng/ml. This cut off value is generally used so that people who don't smoke, but are around smokers, don't trigger a positive test. I hope you continue to stay "smoke-free" long after you have the test. Best wishes.

Cotinine test: If you have not smoked in the past - and have had one cigarette you may be below detection levels. Should pass a saliva test.