Drug testing and vegetarians

So I havent smoked in quite a bit but I used to smoke about 5-6 bowls a day about 3 weeks ago. I smoked a little bit on the 2nd of this month, but that was the last time. Ive been working out and trying to detox for a drug test now. Ive taken some home test (failed the first last sunday, barelly passed the second one later that day. Today It clearly showed a faint pink line, which I understand means I pass), and I'm afraid I might fail the test, or come up as if im tampering (diluting) with it because, while im not a vegetarian, I dont eat red meant and eat just a little bit of white meat on any given day. I understand that creatine is checked to see if the sample has been diluted and red meat is the main source of creatine. Could that be a reason for my test giving me a very light pink line? To be safe, should I just munch down a McDonalds burger before a go for the test? Do they ask any questions regarding your diet when you take the test?

I would greatly appreciate any help anybody could provide.

Creatinine levels have nothing to do with intensity of the "T" line. There is no meaning attributed to line intensity. A faint line is still a negative.

Creatinine levels are checked with a validity test kit. You can order these kits online to do your own checks at home. Google search for "drug adulteration test kits"