The nursing shortage and teaching shortage are one and the same problem. There is a shortage of (employed) nurses and teachers because those hiring them can not or will not hire the appropriate amount. I was a teacher on and off for a few years and could never find meaningful long term employment. I went back to school for (you guessed it) nursing a couple years ago. I've been an Emergency nurse for about a year now.
First of all, employment opportunities are certainly out there - I was able to find a decent job about 2-3 months out of Nursing school. However, the grass is not amazingly green over here. I have friends who graduated a year ago and are just now finding their first jobs. These are BSN-prepared RNs who graduated from a top-tier University, so I'm not sure how the market is for associate degree nurses.
Secondly, pay isn't amazing, but it has room to grow. I certainly know people who pull down six figures, but they work 12-24 extra hours a week and have been at their jobs for 10+ years. Expect starting salary about 24 bucks an hour, at least here in the Midwest.
The hours can be grinding at times, and things are pretty much always very busy. It's often an extremely stressful job, and many experienced Nurses are known for "eating their young," or treating new hires very badly. All that said, I love the job, love the people I am around, and I love working 3 days a week.
If your goal is to become a Nurse in a trauma environment, you could do worse than get a part-time phlebotomy or nurse's aid job while you are in school. Learn how to start lines and draw blood.