My sister (who is a Registered Nurse, no kidding) watches it a lot (sorry to say but I never even seen the show O_O). She watches a lot of um... how do I put this... bloody? Uh... well anyways she watch stuff like ER, etc. ,etc.
Haha, I only watch it because I am planning to be a paramedic when I graduate high school. My father used to work as an ER physician and my parents are divorced, so I was about 7 when my dad took me for his overnight shifts, I usually stayed behind the nurses station watching Mickey mouse, and believe me, I saw, (usually heard) a lot. It was noisy, but over time I became used to it, and I became inspired to be a paramedic, saving lives.