Pody, if you only smoked that one joint and were clean before that, you have nothing to worry about. 1 time/occasional use drops below testing cutoff levels within 1-5 days. If you were a regular smoker before June 18th, you may want to do a home test about 3 days before your other test. If is shows you are still possitive, then you have time to prepair to either substitute a clean sample or dilute you urine. Links to both guidelines are in my signature.

DrGonzo, drinking vinagar will not allow you to pass and if enough is consumed and the urine pH is 'screwed up', as you suggest, to a level outside the urine validity check limits of 4.5-9.0, the test is concidered adultrated and is a automatic failed test. Please be a little more carfull about the advice you post.

Hope that helps. N2
IamN2pot Reviewed by IamN2pot on . im not sure what i should do in this situation i have a UA coming up in early to mid july and i smoked a blunt on june 18th, im 6'2'' about 235. i sweat a unusual amount and drink ALOT of water and take 2,500-3,000 mg of vitamins a day. will i have any chance of passing? Rating: 5