What is the most effective method to control severe bleeding?

The most effective method for controlling severe bleeding is direct pressure, as it actively promotes clotting and minimizes blood loss. When direct pressure is applied to a wound, it compresses the blood vessels and tissue, helping to stem the flow of blood. This is particularly important in cases of severe hemorrhage, where maintaining blood volume and minimizing blood loss can be critical for patient survival.

While elevation of the limb, applying a tourniquet, and using cold compresses can also be part of the bleeding control strategy, their effectiveness varies. Elevation can assist by reducing blood flow to the area, but it does not provide the immediate control that direct pressure does. Applying a tourniquet is a more extreme measure typically used only when direct pressure fails or in cases where the bleeding is life-threatening and severe, as it can cause complications if not used correctly. Cold compresses may help reduce swelling and slow down bleeding superficially, but they do not replace the need for direct pressure in controlling severe bleeding.