止血带急救止血法
First aid hemostasis with tourniquet
四肢较大的动脉出血时，用止血带止血。最好用较粗而有弹性的橡皮管进行止血，如没有橡皮管也可用宽布带以应急需。
Tourniquet should be used for hemostasis in case of large arterial bleeding in limbs. It is better to use a thick and elastic rubber tube for hemostasis. If there is no rubber tube, a wide cloth band can be used to meet the urgent need.
用止血带时，首先在创口近心端的部位用毛巾或绷带垫在皮肤上，然后将橡皮管缠绕在垫有毛巾或绷带的肢体上，然后打结。止血带不应缠得太松或过紧，以血液不再流出为度。上肢受伤时缚在上臂，下肢受伤时缠在大腿，才会达到止血目的。缚止血带的时间，原则上不超过一小时，如需较长时间缚止血带，则应每隔半小时松解止血带半分钟左右。在松解止血带的同时，应压住伤口，以免大量出血。
When tourniquet is used, first place a towel or bandage on the skin near the heart of the wound, and then wrap the rubber tube on the limb with towel or bandage, and then tie the knot. Tourniquet should not be wrapped too loose or too tight, in order to no longer flow blood. When the upper limb is injured, it is bound to the upper arm, and when the lower limb is injured, it is wrapped around the thigh to achieve the purpose of hemostasis. In principle, the tourniquet should not be tied for more than one hour. If a longer time is required, the tourniquet should be released every half an hour for about half a minute. When releasing the tourniquet, the wound should be pressed to avoid massive bleeding.
扎好止血带后，最好做明显标志，写明止血部位和时间，以免忘记定时放松，造成肢体缺血时间过久而坏死。
After the tourniquet is tied up, it is better to make a clear sign, indicating the hemostatic site and time, so as to avoid forgetting to relax regularly, resulting in limb ischemia for too long and necrosis.