Profile For Duke

So excited to get a job offer at Schnieder National, have a start date and everything. I have about 8 months of trucking experience. The lady told me that along with urine testing, they also do hair follicle testing. The hair test kind of worries me because back in November of 2014 I got hurt and went to the E.R. They gave me a Hydrocodone for the pain and a few muscle relaxers. I still have all the paperwork from that incident. I'm just wondering if this would show up on the hair test that is scheduled on the 9th of February. And if it did show, what is Schneider 's stance on that particular issue, would they let it go because it was prescribed, or would they not hire me? If anyone works at or has worked at Schneider please help me out, thanks in advance.