Question: I am a pain management patient. I am prescribed Opana ER 20 mgs 2x per day & tramadol 100 mgs 3x per day. I won't go into details of my diagnosis as it seems of little importance on this matter. My pain levels were up this month. I mistook my medication... as in took too much a couple of days. We had bad weather & that makes things worse. I'm not making excuses here. I knew I should call my Dr. I have an appt later in May so thought I could discuss these issues & medications then. Today I received my rxs on paper from his office along with a random drug screen that I must take within 48 hours. This is not a simple dip test. They check the levels of the medications I am prescribed. I'm not sure if they test for other things. The order states "long term drug use" as it always does. I ran out of my medications 2 days ago. Stupidly I accepted some oxycontin immediate release 10 mg pills from my aunt. Will the oxycontin show up in my urine? How long before the Opana ER is in my system enough to show up on the drug screen normal levels? I do drink only water daily. I was oddly thirsty yesterday & did drink a great deal of water. I am so worried. I'm wondering if I should not take this test & try to talk to my Dr Monday? Or should I cross my fingers and pray? I have never ever been in this situation. I have never run out of medications or failed a drug test with my Dr. Any information you may know about this type of drug test or these medications would be appreciated.