Nursing Auditor????

Any Nursing Auditors out there? I have a job interview soon for a nurse auditor position. I "think" I know what the job would be but I sure would love some insight. Any regrets or concerns that I sould be "warned" about?
Steph,Just came across your message today. How was your interview?This is a small and a typically unknown field. Let me know if you have started --- I am a member of the American Association of Medical Audit Specialists. http://www.aamas.org/. Can give you some tips of the trade. Marilyn