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Weekly First-aid Topic: First-aid measures for knife stab wound
From:Beijing Municipal Health Commission
Date:08/26/2019
It is necessary to stop bleeding first. Different hemostasis methods should be applied depending on the type of bleeding.
1. Capillary bleeding. It refers to red blood oozing from the surface of the wound in small dots. No obvious blood vessel bleeding can be seen in this situation. Usually it can stop automatically. Generally, iodine and alcohol can be used to disinfect the skin around the wound, and the bandage can be wrapped around the wound covered with sterile gauze and cotton pad to stop bleeding.
2. Venous bleeding. It refers to dark red blood flowing out of the wound quickly and continuously. The method of stopping bleeding is roughly the same as that of capillary bleeding, but it is necessary to apply a bandage with a little pressure. When there is slight venous bleeding, the above method can generally achieve the purpose of hemostasis.
3. Aortic bleeding comes fiercely. The blood is bright red and sprays out with the heart beats. Aortic bleeding can cause death in a few minutes and requires urgent treatment and sending to hospital for rescue.
Hemostasis methods such as direct compression and pressure dressing can be adopted. It is advised to cover the wound with a cleaned disinfected gauze, hold it by hand for 5-10 minutes, and then wrap the wound with a bandage, which should not be too tight or too loose. It is necessary to check the blood circulation frequently. Arterial hemostasis by finger compression refers to using your fingers to press the artery at the proximal end of the bleeding wound to block the blood flow in the relatively shallow part of the artery. The pressing should never last for more than 10 minutes.