Tramadol is not screened for and should not produce any sort of postive
on a standard urine test. The half-life of Tramadol is about 7 hours.
A mass spectrometer (gc/ms) would probably be required to detect it
after a simple urine extraction method. While this is possible to do,
it is not standard procedure even for urine tests which are processed
in labs. So unless a urine sample is being sent in to a laboratory,
it is unlikely that Tramadol will cause any sort of positive test
result.
Most other Opioids can be detected for 5 days.