What is a sign of severe hypothermia?

Study for the NOLS Wilderness Medicine Wilderness First Responder Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Severe hypothermia typically presents with significant impairment in the body's function and critical physiological changes. The inability to walk is a key sign that the body's core temperature has dropped dangerously low. When a person experiences severe hypothermia, their muscles and coordination can be significantly affected, leading to an inability to perform physical tasks such as walking.

In severe cases, the body's mechanisms to preserve core temperature fail, resulting in decreased muscle function, confusion, and a host of other potentially life-threatening symptoms. It demonstrates the serious progression of the condition, signaling the need for immediate medical attention.

Other symptoms of severe hypothermia may include confusion, reduced consciousness, and a slowed heart rate, but the inability to walk stands out as a clear indicator of a critical state requiring urgent intervention. Shivering, while a common response to cold and often a sign of mild to moderate hypothermia, tends to diminish as hypothermia worsens. Feeling warm is misleading, as individuals in severe hypothermia may feel paradoxically warm due to the body shutting down its thermal receptors, despite a dangerously low core temperature.

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