Which action is critical in suspected heat stroke?

• A. Rapid cooling with cool water or ice packs
• B. Increase ambient temperature
• C. Administer oral rehydration only
• D. Monitor blood pressure without cooling

Answer: (A)

Rapid cooling is the essential step in suspected heat stroke because the core problem is a dangerously high body temperature with dysfunction of the brain and other organs. The goal is to bring the core temperature down as quickly as possible to prevent ongoing organ damage. Methods like rapid water immersion or evaporative cooling with cool water and fans are most effective because they transfer heat away from the body fast. Remove excess clothing, apply ice packs to key areas (neck, armpits, groin) if available, and continue cooling while arranging transport.

The other approaches don’t address the root emergency. Increasing ambient temperature would make cooling harder and worsen the condition. Relying on oral rehydration alone won’t lower core temperature and isn’t safe if the patient is confused or vomiting. Merely monitoring blood pressure without cooling delays treatment and doesn’t treat the heat injury.