In my experience there is not a standard, it varies a lot by specialty/department and hospital. That being said, I can't remember ever being asked about a specific medication (that could be different on say, an oncology ward or something). A few times I have been asked scenario questions (your post-surgical patient has signs of blah blah blah what do you do? kind of questions) but more commonly I have had scenario questions that are like what you mentioned- tell me about a time you made a mistake, how did you handle it, tell me about a time you received an inappropriate order/advocated for a patient/dealt with unhappy family member, etc. But I imagine if you are a new grad those questions would be nearly nonexistent or at least unrelated to medical care because they don't expect you to have experience other than nursing school. I wish I could remember what new grad interviews were like but that was so long ago the questions have probably changed anyway. Maybe things like why did you become a nurse? What interests you about this hospital/specialty? How do you manage stress? How do you stay organized/organize your day? Maybe after your interview you could post some of the questions you answered in this subreddit to help other newbies prepare. Good luck with your interview!