This is a TV show, pure escapism so I would advise leaving your first aid knowledge outside the door and just enjoy this series as is. I watched the pilot and at the end was a bit unsure if I liked it or not. It has it's moments. You need to watch the second episode as it is starting to get into it's stride, by episode three, I was hooked. Expect the unexpected and enjoy this roller coaster of awe and special effects and make up is pretty darn good. The acting in the pilot was not the greatest but definitely improves with each episode. Stick with it, I believe it has potential to win an award.
