Heat stroke is best described as which of the following?

• A. A mild heat-related illness that resolves with fluids.
• B. A dangerous condition in which the body loses its ability to cool itself through perspiration; core body temp greater than 104; dry skin; rapid and strong pulse; headache; vomiting; loss of consciousness.
• C. Excessive sweating with dehydration.
• D. Heat exhaustion symptoms.

Answer: (B)

Heat stroke is a life-threatening condition where the body's cooling system fails and the core temperature climbs to dangerous levels. The description fits best because it emphasizes loss of the body's ability to cool itself through sweating, a very high core temperature (often above 104°F), dry skin, a rapid and strong pulse, and symptoms like headache, vomiting, and possible loss of consciousness. These features indicate severe hyperthermia with central nervous system involvement, which sets heat stroke apart from milder heat illnesses.

Other scenarios describe less severe problems: a mild heat-related illness that improves with fluids, dehydration with excessive sweating, or heat exhaustion—each of which involves different patterns of sweating, temperature, and intensity of symptoms and does not reach the extreme temperature and neurological effects seen with heat stroke. Because heat stroke is a medical emergency, it requires immediate cooling and urgent medical evaluation.