Just passed my CNOR certification exam this afternoon! It was the most difficult test in my nursing career. I don't remember the NCLEX being this stressful. My advice for those studying for it is to refresh on your test-taking skills. I find that it is 40% knowledge and 60% test-taking techniques. I studied for three months using the AORN Prep Course and the 2011 AORN Standards and Recommended Practices. Most importantly, know your lab values, acid-base balance and sterilization parameters.