How to evacuate during an earthquake? First of all, do not panic in case of an earthquake, do not take the elevator, do not covet your belongings, and do not take inappropriate ways of escape such as jumping from buildings or cars. When you are indoors, quickly crouch down, cover up, hold on, and remember the “survival triangle”. How to give first aid in case of bone injury? 1.Rescue life If you find the injured person’s heartbeat and inhalation stop, you should immediately carry out cardiac compression and artificial breathing; remove the foreign matter in the oropharynx to keep the whistle open; and whistle to call for help. 2.Wound treatment: Use clean clothes or gauze to stop bleeding. Serious bleeding can be pressurized proximal end of the limb, every 30 minutes should be relaxed once (each time 30 to 60 seconds), in order to prevent ischemic necrosis of the limb. 3.Simple fixation Fix the fracture site with cardboard, tree branches, wooden boards and other materials to prevent further aggravation of the injury; if there is nothing available, the injured upper limb can be fixed to the chest wall, the injured lower limb is fixed to the healthy side, which can also play a temporary fixation effect. 4.Appropriate pain relief After severe trauma, strong pain stimulation can cause shock, so if there are conditions, appropriate painkillers can be given. 5.Safe transportation After the above on-site rescue, the injured person will be quickly and safely transferred to the hospital for treatment; when the fracture of the crest column should be rolled or flat support method of transportation, pay attention to protect the cervical vertebrae, you can choose the planks of the door and other solid items as a stretcher, waiting for rescue. Precautions While waiting for rescue, do not use water to clean the wound, and do not apply medicine to the wound casually. Remember that for open fracture, do not plug the broken end of the fracture back in, so as not to bring the pollutants into the deeper layers, resulting in serious infections, as long as it is covered with clean clothes or gauze; if there is a severed limb or organ, please keep it.