Which condition is a true life-threatening emergency requiring immediate attention?

• A. Heat cramps
• B. Heat stroke
• C. Heat exhaustion
• D. Heat stress

Answer: (B)

Heat stroke is a true life-threatening emergency because the body's cooling system fails and core temperature rises rapidly, potentially causing brain injury and organ damage. It often presents with altered mental status—confusion, agitation, seizures, or loss of consciousness—and can occur with or without sweating. This rapid, danger-filled escalation makes it essential to summon emergency help immediately and begin aggressive cooling right away.

To manage it, get the person to a cooler place, remove excess clothing, and start cooling as fast as possible. Use cool water or ice packs on the neck, armpits, and groin, fan the person, or, if available, immerse in a cold bath to bring the temperature down toward normal. Monitor breathing and consciousness, and be prepared to provide CPR if needed. Do not rely on fluids if the person is unconscious or not swallowing safely.

Heat cramps and heat exhaustion are serious but typically do not involve such a rapid, dangerous rise in core temperature or altered mental status, and they respond to rest, fluids, and gradual cooling. Heat stress is a general term for early-warning symptoms and is not the same level of medical urgency as heat stroke.