I applied last Thursday (Dec 1) and was called to set up an interview (for Tuesday Dec. 6 ) on Friday. I broke my hand on Friday and was prescribed hydrocodone. I was given a job offer on Tuesday evening. I took a drug test on Wed. at 8 am (I was never asked about prescription medication) and forgot to tell them about the hydrocodone because I was nervous about my upcoming surgery which I went through at 10 am. Do you know how I would go about explaining this to HR if the test comes back positive?