What type of management keeps the casualty's body heat contained and insulates to prevent further loss, but does not reverse the hypothermic process?

Passive hypothermia management is focused on the utilization of the body's own heat to maintain its temperature by preventing further heat loss. This approach typically involves the use of insulating materials, such as blankets or thermal wraps, to keep the casualty warm without actively introducing heat sources. Its primary goal is to preserve the existing body heat within the casualty's body, creating a barrier against the cold environment, and is especially important in cases where the individual is already experiencing hypothermia.

This method acknowledges the body's natural responses and does not attempt to actively reheat the individual, which distinguishes it from active rewarming. In settings where hypothermia is a risk, passive management becomes crucial to prevent further decreases in core temperature, while actively regaining warmth can come later in treatment once the casualty is stabilized and receiving medical intervention at a higher level of care.