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Oxycodone is opiod analgesic and this gives false positive result for Morphine .
If you have been tested positive for Morphine , you should show prescription of Oxycodone to you testing authority .
Well this depends on the Oxycodone to leave the system till that this will be positive , you should wait to repeat test .
Oxycodone is detectable in blood tests for roughly 24 hours , in saliva tests for 1-2 days , urine tests 3-4 days and hair tests up to 90 days .
If you are going for blood or urine test you should wait for a week after taking last dose of Oxycodone to show negative test .
Regards ***** ***** luck .
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