Fractures
Open fractures:
are named those fractures where the bone ripping the skin and goes out. Always call an ambulance. Meanwhile, we can act covering the wound with sterile gauze or towel, pressing over the wound if it bleeds a lot (never directly on the bone visible) and put a bandage without touching bone. The appropriate course of action is a proper immobilization with improvised splints or something that resembles it.
Closed fractures:
it is necessary to immobilize the injured extremity to a healthy part of the body: if one arm, trunk, and if one leg to another. We improvise a splint with a wooden stick … or place also serves a wide band that immobilize the fractured limb.