If a casualty has severe bleeding from a head wound, what should you do regarding a tourniquet?

When managing a casualty with severe bleeding from a head wound, the best practice is to avoid applying a tourniquet. This approach is grounded in the understanding that a tourniquet is most effective for controlling extremity hemorrhages rather than injuries to the head or torso. Head wounds can often be managed more effectively through direct pressure and other methods without the potential complications that a tourniquet might cause.

Tourniquets can obstruct blood flow completely, and their application can lead to further tissue damage or complications in critical areas such as the head. Instead, maintaining blood flow and ensuring that the casualty receives prompt medical attention is vital. The recommended approach would be to use direct pressure to control the bleeding while preparing to transport the casualty for advanced medical care, thus ensuring effective management of the situation without introducing unnecessary risks associated with the application of a tourniquet to a non-extremity wound.