The principle of diversion is wrong.

The principle of on-site medical rescue management is wrong: according to the classification of injuries, the injured are divided into four categories: red, blue, green and black.

1, it is necessary to closely observe and stabilize the vital signs of patients. If the patient's breathing and heartbeat have stopped, cardiopulmonary resuscitation should be performed at the scene. If conditions permit, venous access can also be established at the scene, and epinephrine and other rescue drugs can be given for rescue treatment.

2. If the patient's blood pressure decreases, two or even three venous passages should be established at the scene immediately, and fluid should be replenished quickly to correct the shock state.

3, for the wound, fracture dressing, first give the wound hemostasis pressure dressing. If the bleeding cannot be stopped, it may be a relatively large vascular injury. A tourniquet and bandage are needed at the proximal end of the limb to block the blood flow.

Extended data:

Modern rescue refers to the timely, advanced and effective initial rescue of patients at the scene of the incident.

The characteristic of modern rescue is to take effective initial emergency rescue measures for the wounded and sick on the basis of on-site rescue and rely on the "first witness" to save lives and reduce disability and pain. Then, under the medical rescue or using the modern rescue service system, the injured and sick people will be quickly sent to the nearest medical institution for further treatment.

Immediately start the emergency rescue plan for production safety accidents, quickly control the hazard sources, organize the rescue of people in distress, organize the evacuation of on-site personnel, request the surrounding emergency rescue teams to participate in the rescue, maintain the order of the accident site, and protect the accident site and related evidence.