I want to become a physician assistant, and i have a few questions: 1. Is this job competitivee? 2. is it hard to get accepted into PA school? 3. what kind of grades d i need to get ino it? 4. is there alot of math involved? do you have to be very good at math? 5. heard you need to have hospital work before getting accepted? What do they mean by this? 6. I want to become this or a Perfusionist, which is a better decision and why?