its a urin test that does everything electronically,kinda crappy actually,made to be fool proof,but 34 days is good to pass,

all depending how fat you are and how much u toke,heavy,light,small amounts daily etc,

me im 170 5'11 i can smoke a gram a day for a whole month stop 30 days and piss clean,never fails for me..

just drink alot of water piss like a horse more water,some b-12 vitamin make ur pee yellow,and a shot of vineger "optional"

all in all your good!