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A tourniquet is a medical device to control bleeding from a wound or limb. It is typically a band or strap tightened around the limb, usually at the proximal end, to stop blood flow. Tourniquets have been used for centuries to treat traumatic injuries and are a critical tool in managing life-threatening bleeding.

Tourniquets are most commonly used in the emergency setting to control bleeding from traumatic injuries, such as lacerations, fractures, and amputations. However, they can also control bleeding from vascular injuries, such as arterial or venous lacerations. Tourniquets can be applied to any limb, including the arms, legs, and torso.

When applying a tourniquet, it is important to ensure that the band is tight enough to stop blood flow but not so tight that it causes tissue damage. The tourniquet should be applied as close to the wound as possible and should be left in place for no more than two hours. If the bleeding does not stop after two hours, the tourniquet should be released and reapplied.

Tourniquets are an essential tool in managing life-threatening bleeding, but they should be used with caution. Improper tourniquet use can cause tissue damage, nerve damage, and even death. Therefore, it is important to follow the instructions provided by the manufacturer when applying a tourniquet and to seek medical attention as soon as possible.

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  • American College of Surgeons. (2020). Tourniquet Use in Trauma Care. Retrieved from
  • National Center for Biotechnology Information. (2020). Tourniquet Use in Trauma Care. Retrieved from