Quick Answer
Apply a tourniquet when you have a limb wound that is severely bleeding and you cannot stop the bleeding with direct pressure, or if you have an injury to an artery, such as a gunshot wound or severe laceration.
Establishing a Secure Tourniquet Application
When applying a tourniquet, it’s essential to follow the proper procedures to ensure its effectiveness and minimize the risk of complications. The TCCC (Tactical Combat Casualty Care) guidelines recommend applying a tourniquet to the proximal end of the extremity (closer to the body) and at least 2 inches above the wound site. Use a windlass (a stick or handle) to tighten the tourniquet, taking care not to apply excessive force, which can lead to nerve damage.
Signs and Symptoms for Tourniquet Application
The decision to apply a tourniquet should be based on visible signs and symptoms of severe bleeding, such as profuse bleeding, a rapid pulse, or a drop in blood pressure. If you’re unsure, consider the following guidelines: if the wound is bleeding at a rate of more than 100 ml per minute, or if the bleeding is arterial (pulsating), a tourniquet should be applied.
Tourniquet Application Techniques
When applying a tourniquet, use the following techniques to ensure its effectiveness: place the tourniquet above the wound site, tighten it in a windlass fashion, and secure it in place with a locking mechanism. Monitor the patient’s vital signs and adjust the tourniquet as necessary to maintain adequate circulation. It’s essential to note that tourniquets should only be used as a last resort, as they can cause significant complications if not applied correctly or left in place for extended periods.
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