Pharmacist, Doctors?

Help, Chemical Engineers / MD's / Pharmacists??
Please help me next to this problem. I am an RN and occasionally we get volatile drug testing. This is no problem for me as I do not do drugs. I informed them that I lately had dental surgery so provided them the 2 unknown scripts the DDS gave me. In accumulation, they have a copy of my prescription on record for cross reference. My DDS give me Valium for before the procedure and Vicodin for after. I be informed that the urnine test be positive for Oxazepam, Temazepam, and Hydrocodone. This all make sense except for the TEMAZEPAM? I know that this is also a benzodiazapine but thought it was specifically Restoril which I DID NOT TAKE. Can the Valium break down into BOTH metabolites of Oxazepam and Temazepam? Can anything explain this?? I really call for to understand this as I swear I don't and would never embezzle anything not prescribed for me. Could the lidocaine or Nitrious used in the DDS bureau cause this? Please relief!Pharmacist, Doctors?
I'll have to verify the metabolic pathway to see how diazepam is metabolized (I am at home now...not work). What I susepct might enjoy happened is that the diazepam tested "positive" on the assays because of the unconcealed chemical similarities. The lidocaine and nitrous had nought to do with anything.
Contact your local drug information center tomorrow. They can set things straight on the lab meaning interference that apparently happened.
Restoril and Valium are so chemically and structurally similar, I wonder if they didn't mistake one for the other on the check.
As far as I can tell, the solely difference between the two chemicals is the molecular structure (shape of the molecule), they're otherwise identical, so there's a perfect chance it's a mistake.