I want to become a PA but i have a few questions. 1. Is this job competitivg? is it hard to become one? 2. is there alot of math involved? Do you need to be good at math? 3.they say you need to have hospital work before getting accepted into PA program, what do they mean by this? 4. How do you go about becoming one? 5.I want to become either this or a Perfusionist, what is a better deision and why?