To prevent hypothermia, where should a heating blanket be placed?

The placement of a heating blanket on the anterior torso and under the arms is the most effective method for preventing hypothermia in a casualty. This area contains major blood vessels, and warming the anterior torso helps to raise the body's core temperature more effectively. By targeting the torso, heat is distributed throughout the body, which is especially important in maintaining vital organ function and overall physiological stability.

Covering the torso and under the arms ensures that the blanket encompasses critical regions where heat loss is significant, thereby reducing the risk of hypothermia. Other areas of the body, while also important, do not facilitate heat retention and redistribution as effectively as the anterior torso in this context.