What term describes the use of the patient's own mechanisms to rewarm him by placing him in a warm environment and covering him with blankets?

The term that describes the use of the patient's own mechanisms to rewarm him by placing him in a warm environment and covering him with blankets is passive rewarming. This method allows the body to utilize its natural processes to generate heat without the application of external heat sources, focusing on creating a supportive environment for recovery.

In passive rewarming, the emphasis is on insulation and maintaining a warm ambient temperature to allow the body to gradually regain its normal temperature. Covering the patient with blankets helps to trap the heat generated by the body, and as the warm environment aids in the natural warming process, it is crucial for recovery in cases of hypothermia.

This approach is distinct from other methods such as active warming, which involves direct application of heat sources to the body, and external heating, which may include devices or equipment designed to provide warmth without relying on the body's mechanisms. Thermal regulation is a broader term that encompasses all processes involved in maintaining body temperature but does not specifically refer to the strategy of utilizing the patient's own mechanisms through passive methods.