Finishing my bachelors in biology and now eyeing an MBA.

Hello everyone. I'm currently 2 weeks away from completing my bachelors degree in biology and I'm considering jumping ship from medical into business. I'm working full time as an EMT currently and starting to realize that where I might not be able to fulfill myself with the medical route I'm on now.

I'm honestly not sure where to go in business but I feel it pulling me towards it. I've always been interested in stocks and finance as far as trends go but I've never taken a business class and have no formal experience in anything related to business. Things I'm considering right now as far as areas I'd like to move into are finance, hospital management/admin, and IS. I don't have a clue what to expect so are there any resources I can look into to give me a good idea of what each area is going to be like so I have an idea of what I might enjoy? Also, would it be difficult to get a job in business with my biology degree and no experience in business before I try to venture into MBA territory?