Keeping clean specimen for extended amount of time?

[kknight]

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 have to go through the trouble of tracking one down.


Quote:
if i have a friend urinate for me the evening before the test, do i have to freeze it right away or something?

also, i get randomly drug tested at school so until i'm clean i plan on using the substitution method in case i get tested. the only thing i have to worry about is whether or not the age of the urine can be detected, and the exact temperature i need to keep it at.

any help would be appreciated, thanks a ton

kknight Reviewed by kknight on 12-03-2006. 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

[NightProwler]

dont take my word for it but i think that you cant use piss older than a day. and it has to be the right temp im pretty sure. wait for someone elses imput though

[kknight]

dont take my word for it but i think that you cant use piss older than a day. and it has to be the right temp im pretty sure. wait for someone elses imput though

Well I'm pretty sure that it starts growing germs after 8 hours but that's where the freezing part comes in at.

[FakeBoobsRule]

Room temperature for 8-16 hours, in the fridge for a couple of weeks, in the freezer for a year.

[kknight]

Preciate it everyone.

[ny2casports89]

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.

[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]

or even if the piss isnt just apple juice

I tell you what, the next time you have a lab drug test, substitute with apple juice and tell us how long it took for them to fail your test. :dance:

[ny2casports89]

My whole point was that from the time i piss until the time my piss gets tested is at the very least a few days....so if hes getting drug tested on the spot, i would assume his piss could be a few days old. The parts about the creatnine break down i mentioned were all on speculation, so i'm sure what your saying about that is true. However i'd still assume that the overall idea of my post is true otherwise everyone of my drug tests would have failed or showed some kind of error.

And the apple juice thing... i dunno what you are you trying to say, I never suggested he should use apple juice, I was just using it as an exaggerated example of why they test for creatnine.

[ny2casports89]

Also fakeboobs.... do you know if saving urine does affect creatnine at all? or is it only the specific gravity and ph levels I should be concerned with, because the company that drug tests me does screen for creatnine but it doesnt say anything on their site about testing for ph and specific gravity