I'm new to all this. I have just applied to a 2 year program and was told I have to be a CNA before my first nursing class. What exactly do they teach you and what do you do? I'm afraid it will be really gross. I know nursing won't always be easy, but don't CNA's have the icky jobs all the time? I want to do it, just to prove I can, but would like to know what I'm getting into. Do they require this to weed out the squeamish?