Actually if you have the time and a little extra cash I would try and take a wilderness medicine/emergency course. I took a Wilderness First Responder course way back in the mid 90's and the fundamentals have always stayed with me.
My instructor was the chief doc for Modesto ER which got the medivac flights from Yosemite, he was also a climber and an expedition physician. He tried to pass on a little of the "wisdom" that can only be gained by experience. His lectures were engaging and very informative. One of his guest speakers was a woman who had been first on the scene at the top of Half Dome after a lightning strike resulted in multiple fatalities/serious injuries. At the time of this incident, she was a recent graduate of his course. It was a lecture I will never forget.
The only reason I bring this up is that you just might stumble on an excellent course and you'll learn a lot. Of course there is a big difference from learning and actually doing, but a little knowledge certainly stacks up a little more going for you when you need it most.
Being way out in the backcountry certainly makes things more dire, but a little training and knowledge just might let one keep their head long enough to come up with the knowledge and creativity needed to help others or oneself.
So yeah, if you can, why not take a course? At the very least if you can get your hands on a copy the National Ski Patrol's "Outdoor Emergency Care". It's written specifically for outdoor/wilderness settings. My copy is the 2nd edition from the early/mid 90's, I believe they still put this out.