this is some of what i was asked in my interview:
-why not md/do or np??
-what if you don't get in-what are you going to do?
-greatest strengths/weaknesess
-they also asked me this specific question about what if i was in a research group of 3 others, and one wasn't pulling their weight, but we had to present a project-how do i handle that, etc. kind of a weird question, but i think i knew what they were getting at...
-are you aware of the committment/what kind of committment does it take to be a pa, etc.
if i think of any more i'll re-post.. good luck!! peace-jd