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For the pain management panel only, regardless of the screen results, GC/MS confirmation for the following drugs are completed and reported individually as positive/negative with a detection limit of 100 ng/mL: morphine, codeine, oxycodone, oxymorphone, hydrocodone, hydromorphone.
When a clinician orders urine drug testing for a patient prescribed chronic opioid therapy (COT), it is essential that the results are interpreted correctly because they often have significant clinical implications. A positive test result showing drugs and/or metabolites found in urine is easily understood. A negative result, while initially simple to understand, can be more complicated and requires the clinician to be aware of several factors that can cause the urine sample to test negative for a compound.