Do u think I can pass a urine drug test in 3 days after taking 600 mg of oxycodon and a 100mg of hydros what can I do to pass if anything

Why did you take the meds before a test, and why do you even have to test.

You are toast and anything you do to try to hide it will backfire, and make things even worse. Who does this kind of self destructive sabotage unless they are CRYING for help.

I hope you get what you need.

Just show the examiner your script for these medications.

If those aren't legally prescribed AND you are under prohibition from using them both (yes you can be legally prohibited from using legal stuff under certain cases)... then you are screwed. That's a LOT of narcotics. No way will they NOT be detected.

If they test for them, yes they will show up.
If you are taking them from doctor, just tell them.
If they are illegally gotten, you perhaps just need to tell the PO and be honest about it

Nope.
And no, nothing you can take. They can tell if you drank a lot of water or tried a lot of ideas you see online.