C CaliCruz New member Mar 4, 2013 #1 I have a blood test for medical purposes that I just found out I have to take. I can easily quit smoking, so how long beforehand do I have to stop smoking to get clean results?
I have a blood test for medical purposes that I just found out I have to take. I can easily quit smoking, so how long beforehand do I have to stop smoking to get clean results?