I do not smoke...but was wondering how you could fool a medical doctor and blood tests/hair tests if you are a smoker? Smokers usually have tell tale signs that they smoke (smell like cigarettes, yellowed fingers and teeth, wrinkes around mouth, smokers cough, etc). Not sure what sort of tests they do, but I believe they take a hair sample...they can determine if you smoke or not. Not sure if it shows up in bloodwork as well.
Why not quit and be honest with the doctor?