What is the most effective technique for applying direct pressure to a wound?

Pressing one hand over the other directly on the wound is the most effective technique for applying direct pressure. This method is crucial because it helps to create a tight seal over the wound, which can significantly reduce blood loss by compressing the injured blood vessels. When direct pressure is applied this way, it not only helps to control the bleeding but also encourages clot formation at the site of the injury.

Using a cloth to cover the wound is a good practice to protect it from dirt and further injury, but it may not apply enough pressure to effectively control severe bleeding. Holding the limb above the heart can help slow down blood loss due to gravity, but it is not a method of direct pressure on the wound itself. Encouraging the person to remain calm is important for overall emotional support, but it does not contribute to managing the physical aspects of bleeding. Hence, applying pressure directly with one hand over the other is the most efficient and recommended approach in such situations.