Keeping clean specimen for extended amount of time?

[FakeBoobsRule]

i think it depends on the tests..... my drug tests get sent into a company which means it has to be at least a couple days b4 they get tested.... i'm sure it depends on the test and what it tests for... the only thing that i could see being a concern is the creatnine levels, if the test doenst test for this i have no idea how it could determine if the piss was old, or even if the piss isnt just apple juice, but most hometests dont test for creatinine. I'm not even sure if the creatinine levels decrease over time, but i think that i've read that they do. But anyway if someone has anything to ad to this i'd be interested to know to, cause i'm in a similar situation where this info would come in handy.

Just about everything you said is wrong. Decomp of urine has nothing to do with decreased levels of creatinine. After about 8 hours the urine begins to breakdown and form ammonia which will not only change the pH of the urine but is easily detectable. Also, when urine leaves the body it is sterile. In a worst case scenario, the urine would begin to grow bacteria and that would be a problem. Also, another chemical is formed from the breakdown of urine after several hours. I believe it is an aldehyde but this I am not sure of.

Yes lots of testing centers may ship the urine at room temp of leave it out for several hours at room temp. You don't want to use urine that has been stored at room temp for several hours and then compound this with the time the test center will let the urine sit at room temp or ship at room temp.

FakeBoobsRule Reviewed by FakeBoobsRule on 12-05-2006. Keeping clean specimen for extended amount of time? I found this post and it was exactly what I was looking for so I figured I would copy and paste it. He never got a reply so I was looking to see if I could get some answers. FYI: since I have to take supervised tests from time to time and many of my friends drink and toke, it's often hard to find someone to give me a clean specimen. I can catch some of them at the right time and I would like to get a friend to just give me a large amount to keep on freeze so that each time I need it, I won't Rating: 5