Kures carries the 6.3 version of Quick Fix urine. It was instrumental in me passing my urine test for a new job. I smoked weed a few weeks before by test and with out quick fix I would have failed. There are a variety of methods employers use to detect drugs in the workplace. A few common methods include: urine testing, drug tests based on hair samples, and drug tests based on saliva samples. Urine testing is the most common method used to detect drugs in the workplace. Urine testing works by detecting the presence of drugs