The three factors used in the clinical diagnosis of heat stroke are listed below. Which option lists them correctly?

The three factors used in the clinical diagnosis of heat stroke are listed below. Which option lists them correctly?

• A. Heat exhaustion, Dehydration, Tachycardia
• B. Fever, Rash, Hypotension
• C. Heat stress, Hyperthermia (core temp > 40 C or 104 F), Altered mental status
• D. Cold exposure, Shivering, Confusion

Answer: (C)

Heat stroke is diagnosed by a heat-related crisis that combines environmental exposure with dangerously high body temperature and central nervous system dysfunction. The key elements are heat exposure or exertional heat strain, a core temperature typically above 40°C (104°F), and altered mental status or other signs of CNS impairment. That is why the option listing heat stress (environmental/exertional trigger), hyperthermia with core temperature over 40°C, and altered mental status best captures the diagnostic picture. The other options describe different conditions: heat exhaustion centers on dehydration and tachycardia without the severe CNS dysfunction; fever with rash suggests an infectious illness; cold exposure with shivering points to hypothermia, not heat stroke.

Heat stroke is diagnosed by a heat-related crisis that combines environmental exposure with dangerously high body temperature and central nervous system dysfunction. The key elements are heat exposure or exertional heat strain, a core temperature typically above 40°C (104°F), and altered mental status or other signs of CNS impairment. That is why the option listing heat stress (environmental/exertional trigger), hyperthermia with core temperature over 40°C, and altered mental status best captures the diagnostic picture. The other options describe different conditions: heat exhaustion centers on dehydration and tachycardia without the severe CNS dysfunction; fever with rash suggests an infectious illness; cold exposure with shivering points to hypothermia, not heat stroke.