Under what condition is the use of a tourniquet deemed appropriate?

The use of a tourniquet is deemed appropriate when there is severe bleeding that does not respond to direct pressure. This situation typically arises in cases where the arterial blood supply is compromised, leading to life-threatening hemorrhage that needs immediate control. Applying a tourniquet directly over the site of severe bleeding can effectively occlude blood flow and significantly reduce blood loss until definitive medical treatment can be provided.

This approach is particularly critical in traumatic injuries where the typical methods of bleeding control, like direct pressure and elevation, are insufficient. It can make a difference between life and death in emergency situations. Additionally, while using a tourniquet, it is crucial to monitor the patient's condition and transport the patient to a medical facility as soon as possible for further care.

Other options do not reflect the appropriate use of a tourniquet. Swelling of a limb could be caused by internal injuries, but it does not inherently warrant a tourniquet without severe bleeding. The application of a tourniquet is not limited to just the transport phase, as it may need to be applied immediately at the scene if severe hemorrhage is present. Lastly, an intact skin condition does not determine the need for a tourniquet; the focus is primarily on the severity of