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Q&A · Survival

How to treat heatstroke when time is critical?

April 6, 2026

Quick Answer

When time is critical, treat heatstroke by moving the victim to a shaded area, removing excess clothing, and cooling the body with cold water immersion or spraying. Administer electrolyte-rich fluids, such as sports drinks, in small amounts to prevent overhydration. Call for medical help immediately.

Cooling the Victim

Cooling the victim is the top priority when treating heatstroke. Remove excess clothing, including shoes and socks, to allow for maximum heat loss. Use cold water immersion by submerging the victim in a cool bath of 85-90°F (29-32°C) water for 10-15 minutes. Alternatively, spray the victim with a fine mist of cold water and fan them to enhance evaporation. Avoid ice water, as it can cause the blood vessels to constrict and worsen the condition.

Rehydration and Electrolyte Replacement

Rehydrate the victim by administering electrolyte-rich fluids, such as sports drinks, in small amounts (1/2 cup every 10-15 minutes). Aim to replace lost electrolytes, including sodium, potassium, and chloride. Oral rehydration solutions, like Pedialyte or Gatorade, contain essential electrolytes and should be used if available. If the victim is unable to drink, administer IV fluids or call for medical help.

Preventing Further Complications

Monitor the victim’s vital signs, including temperature, heart rate, and blood pressure, every 15 minutes. Continue cooling and rehydrating the victim until medical help arrives. Be aware of potential complications, such as seizures, coma, or cardiac arrest, and call for emergency medical services if they occur.

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