I'm not supposed to disclose the specific questions (due to the confidentiality agreement), but the interview was really conversational and not stressful. I've heard otherwise from people who interviewed in previous years, so I was a bit apprehensive at first, but the questions were quite straightforward and there wasn't really anything tricky. The faculty member who interviewed me was actually the author of a medical ethics book (I only found out just before my interview), so I did get a few ethics questions, but they were straightforward. Just remember to put the needs of the patient first and you'll do fine!