Which statement is true regarding the use of a tourniquet?

The assertion that a tourniquet should be applied only after other methods fail is grounded in medical practice guidelines. While tourniquets are effective for controlling severe hemorrhage, they are typically reserved for situations where direct pressure and elevation have not successfully staunched the bleeding. The rationale behind this approach is to minimize the risk of complications associated with prolonged tourniquet use, such as tissue damage.

Tourniquets are most appropriately used in cases of life-threatening extremity bleeding when the situation is critical, and time is of the essence. In less severe cases, simpler measures may be employed first, which is why the principle of only using a tourniquet after other methods have been attempted is emphasized in training.

This practice ensures that tourniquets are utilized judiciously, maintaining their effectiveness while reducing potential harm to the patient.