Final answer:
The Esmarch bandage is used to exsanguinate a limb before inflating a tourniquet cuff, ensuring a bloodless field during surgical procedures.
Step-by-step explanation:
The elastic rolled bandage designed to exsanguinate an extremity before a tourniquet cuff is inflated is known as an Esmarch bandage. This type of bandage is tightly wrapped from the distal to proximal end of a limb to control blood flow and ensure the area is blood-free before surgery or the application of a tourniquet. It's an important tool for creating a bloodless field and reducing the risk of bleeding during procedures.