There use of the term assays make it seem like they're talking about immunoassay. But I hear ya.
I've been reading this site because I took a pre employment DOT drug test. I have been "clean" for 64 days before I took the drug test. I even took an at home drug test and got a light pink line for negative 34 days ago(first void). I thought I was good for sure went in pretty confident. This was 3 days ago. I still haven't heard anything back and after doing research am scared to death now as I find peaple are failing even past 64 days. And rarely does anyone who makes a thread about drug tests ever post a follow up of the results on here.
I took nothing when I took the drug test and used my first void (didnt know at the time it was the most concentrated). I did piss a little in the toilet first before in the cup. I hope that helped somewhat.
I hope i'm not one of them that THC-COOH etc stays with for a long time. I cant afford to fail this. The fact the results still aren't in are adding to my nervousness.