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    2. 止血帶在使用時有哪些需要注意的?

      2022-06-15 11:20








      Tourniquet is a simple and effective hemostatic method for massive bleeding of limbs. It can stop bleeding by blocking blood flow through compression of blood vessels. The material of tourniquet is rubber strip or rubber tube, and inelastic tape such as cloth tape and wire should not be used. The binding position should be above the wound (proximal to the heart) and as close to the wound as possible, the upper 1/3 of the upper arm and the middle and upper thigh are appropriate. You can't use a tourniquet on the leg or forearm, because there are two bones and the blood vessels run right between them and don't compress the blood vessels. A tourniquet should not be applied to the middle and lower 1/3 of the upper arm, as it may cause nerve damage and paralysis of the arm. Choose a cloth band at least 5 cm (2 inches) wide for hemostasis. If you are forced to use narrower wires (wires or ropes), layers of fabric must be folded to reduce discomfort and avoid nerve or muscle damage.

      Precautions for use:

      1. Tourniquet blocks blood flow, which may cause serious injury or even limb necrosis if tied for too long.

      2. Tourniquet can only be used to bind limbs, not head, neck or trunk.

      3. Do not cover the tourniquet tied around your limbs.

      4. Check the circulation of blood. After bandaging, check toes or fingers frequently to see if the ends have cyanosis or skin temperature drop. If there is, it should be released, otherwise it may cause tissue necrosis.

      5, improper use or use for too long, can cause distal limb ischemia, necrosis, resulting in disability, therefore, only in severe bleeding, with other methods can not be applied when bleeding.

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