In the interviews, you will be asked questions that you don’t know the answers to, this is the goal. Go back to the basic principles of what you do know and try to work up to an answer from there. Don’t panic; you’re allowed to take a second to think. Fall back on what you know for sure- remember they don’t expect you to know the answer, they just want to see how you think. If you made a mistake in your logic earlier, don’t be afraid to say so- explain that now you’ve thought more you realise you were wrong. Often you may be asked to interpret a graph, or a picture (generally an X-ray or image of some body part), that you struggle to interpret. Start off by describing what you see that you consider important to give yourself some time to think about the interpretation, then move on to what you think this might mean.