Which statement best describes signs indicating severe hypothermia?

• A. Blue and puffy exposed skin, decreased vital signs, cessation of shivering
• B. Intense shivering and confusion
• C. Normal vital signs and warmth
• D. High energy and alertness

Answer: (A)

Severe hypothermia shows a breakdown in the body's ability to generate and conserve heat, leading to a collapse of vital functions. The best description is when exposed skin looks blue and puffy, vital signs are depressed, and shivering has stopped. Shivering tends to be a body's first defense against cold, so its cessation signals the thermoregulatory system has failed and the person is in a dangerous, late stage. The blue, low-perfusion skin reflects cold stress and slowed circulation, while decreasing vitals show the heart rate and breathing are slowing with the temperature drop.

Intense shivering and confusion are more typical of earlier or moderate stages when the body is still actively trying to warm itself. Normal vital signs and warmth, or high energy and alertness, would not align with severe hypothermia, which by definition involves dangerously low body temperature and impaired function. If you encounter signs of severe hypothermia, treat it as a medical emergency, handle the person gently, and begin appropriate warming and monitoring while summoning advanced help.