What would oxycontin show up as in a UA test?

A fail.

Oxycodone HCI, a schedule II drug and opiate, prescribed as an analgesic. Better have a prescription by a lawful prescriber if its found in your urine.

Even if you have a prescription, but are required to abstain, you will fail. Having a prescription does not give you a free pass to take drugs you are required to avoid.

A prescription does not trump a court order.

If you have a script I can bet you never told the doctor about your being tested, or an alternative was needed. You are supposed too.

If you have a script I can bet you never told the doctor about your being tested, or an alternative was needed. You are supposed too.That's so very true. There are other meds that work as well that are not narcotic based. It is important for the patient to be open and honest with the doc when prescribing meds. However, we don't know that is the case here. The OP never mentioned a script, just that he/she took the meds.

If there was no prescription, and the OP is in the US, obtaining these meds any way other than a script is another charge, a felony.