I also give entonox for pain relief for any suspected fracture. When I first started with BCAS all I need was the OFA 3 course and apperently I was lucky to have an instructor that made us do alot splinting and trauma packageing. I have used pillows for ankles, Sam spints and metal flexable splints for arms. To help stablize shoulders and clavicals I use a towel up into the arm pit and zap straps to hold the arm in place. When dealing with hips or femurs zap straps and a blanket are my best friends. And if it is with in my guidelines they get the entonox asap.
The one thing I never really understood during classes was using the Segar splint in trying to convince a pt that me pulling on their leg and applying this contraption was going to make them feel better until I actually used it. I asked this particular Pt if it was true and she said the relief was amazing.
So I guess back to the original theme, I would like to be able to completely eleviate any of my pts pain to 0, and I have found that entonox has been a good to get most of the pain at least down to a 2. The one call that comes to mind in useing all of my resourses what a 20 yr old Dirt bike accident. He was wearing a helment thank god, was riding down the beach hit a rock, went over the handle bars, wacked his head on a rock, flipped and smacked his hip on another rock. He heard and felt the snap of his femur. Did a complete spinal and femur stablization with zap straps gave him the entonox for relief while we packaged and moved him. By the time we got him to the hospital which was 5 min away his leg was 3 times its normal size, so with that in mind in using the straps is that you have to keep evaluating and adjusting the straps so that it dosnt turn into a tornique.