1. In case of respiratory or cardiac arrest, first-ever cardiopulmonary resuscitation; hemorrhagic shock first stop bleeding, and the condition is improved after being fixed.
2. When the patient is fixed outside the hospital, the deformity caused by the fracture is forbidden, and the fracture end cannot be returned to the wound, as long as it is properly fixed.
3. The splint of the substitute is longer than the joints at both ends and fixed together. The splint should be smooth and the splint should be on the skin side. It is best to pad and wrap both ends with a soft pad.
4. When it is fixed, it should not be loose, not tight and firm.
5. When fixing the limbs, the fingers (toes) should be exposed as much as possible to observe the presence or absence of fingertips, purple, swelling, pain, and blood circulation disorders.
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