Just prepare yourself mentally would be enough cos in the end i think what matters most would still be your Pre U results. And lecturers will only ask you things that you SHOULD know (common sense). So just answer according to what you are taught and answer it logically.

Like for example, why taking insulin orally is less effective than injection of insulin into patient's body? U should know why if u studied chemistry and biology. 

good luck!

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Added on July 14, 2010, 3:12 pmAnd on a side note, lecturers there are very friendly so you can be rest assured of the interview being too formal, just treat it as a friendly conversation betw the lecturer and you. and ask everything that u are unsure of.

Its not THAT hard really.