The document provides first aid instructions for various injuries:
1) It lists different first aid items and matches them to injuries like burns, broken bones, snake bites, and cuts.
2) It describes first aid procedures for different injuries like cooling burns with water, splinting broken bones and not moving back injuries.
3) It teaches when to use "must" and "must not" by giving examples like "you must call for help immediately" and "you must not give the patient food".