KCL and Roehampton interviewed me for Adult Nursing, and I was offered a place to study by both.
The interview format and questions are very similar. No one expects applicants to know much, let's be honest. What they want to make sure is that you understand that it is a demanding job physically, mentally and emotionally, that you show that you know how to deal with stress and that you can control yourself in unpleasant situations. Of course, you need to know what compassion and empathy are and give examples.
Then they want to know who you are, your interests and why you want to become a nurse.
My only tips are to remember to smile and address the interviewer politely and with their preferred name (after asking them how they prefer to be addressed). If you don't know the answer to a question, be honest and say that you don't know instead of making things up. They won't expect you to know everything.
You will be fine.
BW