My drug screen came back (+) for oxycodone and tramadol... I have never taken tramadol and had not taken oxy... however, like I said, I had taken vicodin the night before and provided the pharmacy drug profile to Lab Corp. The drug screen did not show vicodin... I don't know how this could happen and when I spoke to MRO they were not willing to discuss ... they simply told me that the script did not cover the drugs that showed up. Has this ever happened before?