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The half life of oxycodone is 4-5 hours this means the drug is still in your system after 4-5 hours.
This depends on sensitivity of urine drug test and it detects in urine for up to 2-3 days after you last take it.
Home tests are not reliable and they give false positive results also.
However if you have to test with house rapid screen test so it can possible to show positive result 5 hours after taking last dose.
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