Which condition is typically characterized by hot, dry skin and altered mental status?

• A. Heat Stroke
• B. Hyperthermia
• C. Heat Exhaustion
• D. Frostnip

Answer: (A)

This scenario points to heat stroke, a severe heat-related emergency in which the body's cooling mechanisms fail and core temperature rises rapidly. When core temperature climbs to around or above 40°C (104°F), the thermoregulatory center in the brain becomes overwhelmed, leading to central nervous system dysfunction. That’s why altered mental status—confusion, agitation, seizures, or even coma—appears alongside extreme heat.

The skin tends to be hot and dry in heat stroke because sweating markedly decreases or stops as the body can no longer sustain active cooling. This contrasts with heat exhaustion, where the skin is usually moist or clammy and the person often feels faint or weak but remains oriented. Frostnip is a cold injury, presenting with numb, pale skin rather than hot and dry. Hyperthermia is the broader term for elevated body temperature; heat stroke is the dangerous form that specifically includes CNS symptoms and dry skin.