Which warming method is most consistent with passive warming for mild hypothermia?

• A. Passive warming
• B. Active heating
• C. Immersion in hot water
• D. Cold ambient exposure

Answer: (A)

Passive warming centers on conserving the body’s own heat and letting metabolic heat gradually raise core temperature. In mild hypothermia, the patient is still able to generate heat (often with shivering), so the safest and most effective approach is to create a warm, dry environment and minimize heat loss. Insulate the patient with dry clothing and blankets, remove damp clothing, and keep them in a sheltered, warm area. This method avoids introducing external heat sources that can cause rapid shifts in temperature or skin burns, and it reduces the risk of afterdrop from a sudden or excessive warming.

Immersion in hot water represents active external rewarming and carries risks such as burns and cardiovascular stress, making it unsuitable for this scenario. Cold ambient exposure would worsen hypothermia, and active heating methods are generally reserved for more severe cases or when passive warming alone isn’t enough.