Contusions and dislocations require the application of ice to the injury site to relieve tissue edema and reduce pain, as well as a fixation bandage in case of dislocation, since the articular heads come out of the articular cavities and any movement causes pain. Fractures (open) require stopping the bleeding and fixing the damaged bones until the victim is delivered to the hospital. For this, a tire is applied, a soft roller is placed under the place of damage from available tools, any hard surface can serve as a tire. In case of spinal injuries, a person is placed face down on a flat hard surface and immediately taken to the hospital.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.