Keeperofbandages has 9 years experience as a LPN and specializes in School Health.
We use these ones for big-deal stuff:
(the wheels light up when it rolls.) I'm not sure where we purchased from, as they get added to our district bid list and then companies bid on filling it at the lowest cost.) All our offices pack it the same way for continuity and it is essentially a bit of anything we would want to operate a station outside of the office. Some assessment tools and items we would want if stationed outside in an evacuation. It's pretty large, and VERY organized if you have a label maker.
Otherwise I have a small fanny pack that just has a SAM Splint in it with an ace wrap for it, some ABD pads/packing gauze, roll of tape tourniquet, and I'd grab a stock Epi on way out to stick in it if that's part of the call. I think streamlining 'go' bags is really important, since most scenarios end in stabilizing or comforting until EMS arrives or treatment back in health office. The nurse before me was lugging neosporin and splinter kits in her 'go' bag. It was massive.