How can I prepare for my medical school interview?

I would recommend you split your interview preparation into three broad areas: 

1. Practice! Get someone to interview you: preferably several people, more than once. Doctors (or vets/dentists as applicable) are the ideal first choice, and you can ask them whilst seeing practice with them in your holidays. Teachers are can also be helpful, but even family and friends can be great at helping you develop the essential interview skills: confidence and clarity. If they don't know what to ask you, suggest they ask the 'standard' questions: "Tell me about yourself." "Why you want to do medicine?" "Why you are a good candidate?"

If you have a personal statement, make them ask you about that. If you have work experience, get them to push you on what it was you did, what you learnt, whether it affected your impression of your chosen career. The trick to a successful interview is confidence, and you can achieve that through practice.This is the most important way to prepare!

2. Work on learning your personal statement. This is all your interviewers have to get to know you, and they will undoubtedly pick sections of it to ask about in more detail. If you mention a specific case you saw on work experience, then do some research and be prepared to talk about it. It's a good idea to take a diary on everyhing you learn on your work experience, so you can look at it again before your interview.

3. As well as your personal statement, you may be asked about ethical issues and professionalism. Try to research some current ethical debates regarding your subject area, and decide on your opinion about them. The trick to this is remembering to take other points of view into account and present a balanced argument before drawing your conclusions.