SO are you saying a few hours I should drink water,gatorade, and b-12? I need to take a test also. I've been clean since may 6th, 2010. I took the same test ans a line appears faintly and the right side is light red but it says that any line and faint color is considered a week negative but a passing negative. So what should I do? I'm 5'8, 208 lbs and have stoped working out but eat a lot of salads, teas, fish, chicken?