If refrigerated, how long can pee last for a drug screening?

Question

If refrigerated, how long can pee last for a drug screening?

Answer 1

You can freeze it, but make sure its warm before you turn it in, like body temp warm. They can detect the temp difference, and will know if it came out of you that day.

Answer 2

i work in a drug rehab we keep it refridgerated for up to a week before the company that tests it pick them up.