Nope. As long as all of your donors are drug-free (including scripted and OTC meds) and not overhydrated, the sample will be fine.
Burnt Toast Reviewed by Burnt Toast on . Multiple Samples? So I had my uncle give me a urine sample but it was hardly 1 oz, so my aunt offered some of her own to add to it.. Still not very much lastly my niece also contributed to the schmorgassborg of urine. My question is: Would this have any negative impact on the outcome of my escreen test? does the fact that there are multiple different peoples urine all mixed up into one big great stew mean that it will show differently or inconclusive in the results? Rating: 5