I took a drug test at my probation office and they told me they send the samples to the lab to be tested. I drank a Qcarbo drink and followed the directions. After I took the probation drug test, I went to Concentra and took a private drug test from them. Concenta's results came back negative. I'm concerned about my missouri probation test because the urine was a funny yellow. The test was 7 days ago and I haven't heard anything yet. I was wondering if it would take longer than 7 days if they tested the urine further. I'm not even sure what kinds of testing Missouri probation offices use. Does anyone have any ideas about the time and what testing they will use?