Hey all, I joined specifically to respond to this thread, as it deals with something that very specifically relates to my own experience...
Your volunteering experience sounds exactly like what mine was for the first two years I did it (only had around 110 hours by then). I pretty much stood around, never went into the rooms except to help the nurses if they needed anything (read: needed sheets changed), did all the paper-clipping of those facesheet forms, and all that really horrid (yet much needed) jazz.
Well, I took a summer off the volunteering and got a real money paying job for once and got a year of college under my belt, and decided that I was not going to let my summer turn out like two previous had. I told the ER Director of Nursing that this year I wanted to follow the doctors around; and also, by this third year, I knew most of the doctors better, and made it known to them (nicely) that I wanted to see what they saw.
What I got this summer was invaluable. I listened to how they talked to patients that were seriously hurt, the families of those who were brain-dead, the crack patients, the parents who bring their 3 month old in because they (heaven forbid!) had a temperature of 98.9. I got a feel for how they worked, and what's more important, I started asking specific and pointed questions to the doctors. I asked them why they did the procedures they did, why procedures were performed certain ways (thoracentesis, spinal taps, that stuff). I asked about EKGs, ECGs, the differences between DOs and MDs... by the end they didn't even let me ask... they just flat out told me what they were seeing in Xrays, and how to read all the bloodwork tests they do, etc. I watched many a stitching, and asked the PA one day to show me how to do it. (He let me play with a set on a styrophome cup, which was tons of fun.)
Now I would also like to say that I had two incredible Med students doing ER rotations for two of the three months I volunteered this summer, and they were awesome... so hey you Med Students on ER rotations, if you see a volunteer, take it from me: explain to the Volunteer what you're doing, invite them in with you. It really is incredible to be more than a volunteer... to observe and learn.
Take it from me, don't waste hours and a summer just sitting learning more about ER Registration than the real thing. Remember, this is your life you're trying to figure out. I figured it out eventually, and I learned so much. Do yourself an incredible favor. Sure you can help out doing sheets and paper clipping while the doctors are filling out their orders or whatever (taking a Diet Dr. Pepper break, in my case).
And don't be afraid to speak up and say stuff to the nurses and doctors - let them get to know you, and you get to know them... ER Doctors that you really get to know will write some great Recommendation Letters (I hope)!
Sorry for the longwinded post,
-Tussis