Hello Doctor,

I have a drug test tomorrow. Not sure if I will have a hair test, but definitely urine. I smoked about 4-5 puffs of weed exactly 39 days ago. Prior to that, I smoked about the same amount in June 2014. Now, my questions is that I have heard that for one-time, or rare users, the thc level in hair is undetectable. My question is, do you think I'd be in the clear for a hair follicle test? Also, I took an at-home urine test, which yielded negative results, but the T line was very faint. Should I be worried? Thank you