Hi J.,
As a nurse, I can say that for me, it has been a great career. I do not always like my job, but I love being a nurse, and am very glad that I went back to school to get a degree in it. Some things to think about if you are leaning towards this vs. Respiratory Therapist or Radiology/Ultrasound, etc.: Nursing will give you the biggest bang for your buck, as there is always going to be a shortage of nurses. Also, as a nurse, you can frequently change your practice area if you find you aren't thrilled with your current situation. For example, 12 years ago when I first started, I was in a trauma step down unit in a large inner city hospital in D.C. but I trained after 6 months to go to critical care, and found my passion. However, through the years, I have also done recovery room, out patient surgery, Informatics (Computer stuff) and management. I always seem to go back to the bedside, as again, this is my passion. The other medical fileds do not really offer this kind of flexibility. Anyway, good luck on returning to school. I hope that you find your passion as well!
J.