Hey, It depends on where you go to test. I just had my first pre employment drug test and had to go to lab corp. I have heard mixed things about this place, but i have also hear that they do the initial at 50ng/ and then if that comes positive they test for 15 n/g. I was also wondering that if you test above on any of the drug screens do they just move foward with the lower ng testing for each drug or jsut the one detected in the initial screen. Well anyway, I had been 13 days without smoking and had passed a home test(in ghood shape/low body fat) my boyfriend told me all the detox products are scams as he went to boarding school and was tested every week for everything and failed even after using all of those 80 dollar rip off drinks. ANwya, so i jsut drank a gatorade/ and one redbull some extra water, nothing special and went in to pee(mid-stream of course). SO i wasnt worried, i wasnt trying to dilute really and my dumbass smoked a little(well LARGE) victory bowl of the chron later that night only to get a phone call the next morning saying my sample had been too dilluted and i needed to retest the next day.I cannot be emplloyed if they recieve two dillute samples, so i passed another home test even after my victory bowl even though the second line was so so faint. I think i am totoally fucked and that on monday i am gonna get a lecture from this place I really really wanted to work. But, i stand a chance if its just 50ng cut off... if not im screwed and really kicking myself for smoking before i knew the results were sure. This is going tobe a long long ass weekend!:joint1: