What is a significant risk if a tourniquet is applied for too long?

The significant risk associated with applying a tourniquet for an extended period is the loss of feeling in the extremity. When a tourniquet is tightened around a limb, it compresses arteries and veins to prevent blood flow, which is essential for controlling severe hemorrhage. However, if the tourniquet remains in place for too long, it can lead to a loss of circulation in the affected area. This lack of blood supply can cause nerve damage, resulting in a loss of feeling or sensation in the extremity. Additionally, prolonged use of a tourniquet can lead to irreversible tissue damage, which may require amputation in severe cases.

The other potential consequences, such as infection or blood poisoning, are generally more related to the wound itself rather than the factor of prolonged tourniquet application. Increased bleeding can occur if a tourniquet is not applied correctly or if it is removed improperly, but this is not the primary concern of a tourniquet’s duration. Understanding the implications of tourniquet use is crucial for effective first aid and emergency response.