1. Does Quest Diagnostics send the specimens off-site, or do they perform the preliminary drug screening in their lab?
If this was truly a DOT test, you wouldve witnessed the collector:

- Split the sample 30/15 (in bottles with your initials on them).

- Bagged, tagged specimen to be sent off to a facility for analysis.

Under the DOT regs, the collector has to perform these functions in your view. With that being pointed out, you have the answer to your question.
Burnt Toast Reviewed by Burnt Toast on . "At Home Drug Test" => Passing drug test? Hi everyone, I was offered a great job, and of course they perform drug tests before hiring. I haven't been a heavy smoker for several months, but recently went on a trip to the Bahamas and smoked about 4 times in the span of a week. The day I came back (a Wednesday), I was told that I would have to take a drug test on Saturday. So I started slamming water. I bought two "At Home Drug Test" kits for THC, and took one on Friday; it came back negative. So far so good. The morning of Rating: 5