Which method can be used in extreme cases to control bleeding?

In extreme cases, a tourniquet is used to control bleeding, especially when other methods are insufficient or cannot be applied effectively. A tourniquet is a device that compresses blood vessels to restrict blood flow from a limb or extremity, thereby helping to prevent excessive loss of blood in situations such as traumatic injuries or severe lacerations.

This method is particularly critical in emergency situations where arterial bleeding is present, and immediate intervention is necessary to save a life. The application of a tourniquet requires specific knowledge, as improper use can cause additional tissue damage. However, when used correctly, particularly on a limb, it can be a lifesaving measure.

Other methods, such as direct pressure and elevation, are effective and often used first to manage bleeding, but they may not be enough in severe cases. Suturing is a technique used to close wounds and is not applicable for immediate bleeding control. In life-threatening scenarios where rapid blood loss is occurring, the tourniquet stands out as the necessary intervention.