In the final episode of the BCA Companion Rescue video series, BCA ambassador and American Avalanche Institute (AAI) co-owner Sarah Carpenter highlights how to evacuate an injured avalanche victim from the backcountry. Determine if the injury is usable. (A usable injury means whether you can put weight on it and get out of the backcountry under your own power for example, is the joint usable or not?) If not, be prepared to build a rescue sled and perhaps an emergency snow shelter.
This is not a substitute for an avalanche class. Get educated before heading into the winter backcountry.
Find a list of avalanche courses here.