What is the recommended practice for hypothermia prevention during TFC?

The recommended practice for hypothermia prevention during Tactical Combat Casualty Care (TCCC) is to place the casualty on an insulated surface. This is essential because it helps to minimize heat loss from the body, particularly in cold environments, by providing a barrier between the cold ground and the casualty. Insulated surfaces can prevent thermal conduction, which occurs when the body loses heat to a colder surface underneath it.

By utilizing an insulated surface, the casualty can retain more body heat, which is critical in preventing hypothermia. It also creates a more stable environment for the casualty, allowing other necessary interventions to be performed while protecting them from further temperature drops.

Other choices like removing all clothing or wrapping with cold, wet towels would exacerbate the risk of hypothermia by promoting further heat loss. Keeping the casualty in direct sunlight could be beneficial in certain conditions but is not a universally applicable solution and may not be effective in all environments, especially if the sunlight is not available or if the temperature is still low.