How to make this happen?

I finally got a job at a really great hospital in an ideal location and in many ways am so excited! But I'm still not in a specialty that I find completely fulfilling, in fact, I feel like I've regressed a bit at times. I'm working on a surgical/tele unit. Primarily surgical floor and feel like a glorified waitress! I am sick of the whining, ******** an moaning about "small" things (like the food tasting bad). Okay, I am empathetic and compassionate, but I'm sick of the dealing with many of the non issues like soup that's not hot enough. I went into nursing to be challenged, to feel like I'm making a difference in peoples lives, to use my mind and all of my skills to save lives. I just feel like I'm not doing that and I'm bored.

I've worked a few codes and really liked it and I've worked tele long enough to feel comfortable with heart issues and relatively unstable patients. I really want to work in the ED and I've considered ICU. How do I go about transitioning departments. I plan on paying my dues on this floor, but really need a strategy to move forward. How should I go about it? Should I talk to the nurse managers or is there something else I can do to feel it out?