What is the primary concern when treating a casualty with a tourniquet?

Monitoring for potential complications such as tissue necrosis is the primary concern when treating a casualty with a tourniquet. While applying a tourniquet can be a life-saving measure for severe limb bleeding, it also poses risks, particularly if left in place for an extended period. When a tourniquet is applied, blood flow to the affected area is stopped, which can lead to ischemia, and if not addressed in a timely manner, this can result in tissue damage or necrosis. Thus, while initial hemorrhage control is the immediate goal, awareness and monitoring for complications that may arise from the tourniquet application are crucial to ensure the casualty's long-term recovery and minimize the risk of permanent damage. This focus on monitoring allows for timely intervention if complications do arise, ultimately improving patient outcomes.