Vicodine is a semi-sythetic opioid that will trigger a NIDA 5. The normal routine is you take the test, it comes up positive, they test the split sample, it comes up positive, the MRO calls, you show the prescription, you're in the clear as long as you haven't been flying. Given that you're talking a pre-employment test and the goal of new hires is to be invisible, I cann't tell you what to do.

I'm not an MD, my info comes from being on an Aeromedical committee 5 years ago. And I don't know about the Valium.