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Welcome to JA and thanks for this question. When did you last take oxycontin or are you on this daily? have you requested a GC/MS test be done?
Also are you on any other medications, even supplements or OTC medications?
Thanks for the additional information, let me just write down an answer for you and ill get back to you in a few mins. If you get a phone call request, that is an automated site response. I DID NOT send it. Thanks!
I have been called to the ICU so i will opt out and let another expert answer this question for you. Sorry for the inconvienience but a patient has gone critical. Do not reply to this as that will lock the question back to me.
Creatinine is normally present in urine and you are tested positive for codeine because you are taking oxycortin(oxycodone) and tramadol. Oxycodone has variable cross-reactivity with different opiate-screening assays. So tramadol and oxycodone are the drugs giving false positive for codeine in your urine sample.
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My pleasure to help you Donna.
Wish you good health.