i have recently started seeing a new pain management docotor, on my first visit, i informed him that my previous doctor had me on opana 40mg 2 times a day and oxycodone 30mg 4 times a day. He began my treatment with percocet 10mg 4 times a day. (which was ridiculous because that dosage of medication compared to my previous dosage would NOT do anything for my pain. So throughout that month, i ran out of the percocet and took whatever leftover 30mg oxycodones i had left. On my next visit, i was given a urine test and told that i had failed because it tested positive for an opioid (morphine) according to him. I told him that the percocet was not strong enough and that i had to use my remaining oxycodone. He said to me that i still should not have tested positive for morphine. he gave me a new script for the past month for 15mg oxycodone 4 times a day (which still is not enough to keep my pain in check) My question is what should show up on my next urine test and what exactly do they test for?