止血带的不合理、不正确使用可能加重伤情，未经培训的人员，不建议使用。
Unreasonable and incorrect use of tourniquet may aggravate the injury. Untrained personnel are not recommended to use tourniquet.
只有四肢严重出血才能使用止血带。
Tourniquets can only be used if there is severe bleeding in the extremities.
严重出血、按压止血无效或者无法按压止血的情况下才使用。
It can only be used in case of serious bleeding, ineffective compression hemostasis or inability to press hemostasis.
特殊设计的止血带效果优于临时制作的简易止血带，对患者造成的伤害较小。
The effect of special designed tourniquet is better than the simple tourniquet made temporarily, which causes less harm to patients.
止血带使用必须记录使用时间并告知后续急救人员。
The use time of tourniquet must be recorded and the subsequent emergency personnel shall be informed.