What environmental measure is commonly needed in air ambulances to prevent cold exposure, and what practical method supports it?

• A. Humidity control with humidified air.
• B. Temperature control; use heated blankets, warmed IV fluids, and cabin heating.
• C. Increased cabin altitude for warmth.
• D. Use of extra fans to circulate air.

Answer: (B)

Cold exposure is a real risk in air ambulances because the outside air is cold and the cabin can become chilly at altitude. The best way to prevent hypothermia is to actively manage the patient’s ambient temperature and provide warming measures. Maintaining cabin warmth is essential, and practical methods include using heated blankets to insulate the patient, warming IV fluids to avoid introducing cold volume into the circulation, and keeping the cabin heated to a safe, comfortable level. While humidity control can improve comfort, it does not address core warming as effectively. Increasing cabin altitude would lower the temperature and worsen cold exposure, and extra fans do not provide warming.