Quick Answer
Move the affected person to a shaded or air-conditioned area immediately, remove excess clothing, and apply cool water or ice packs to the body, particularly to the neck, wrists, and groin.
Cooling the Body
Cool the body as quickly as possible, aiming for a temperature drop of 1-2°C (1.8-3.6°F) within the first 30 minutes. Remove excess clothing and apply cool water or ice packs to the body, particularly to the neck, wrists, and groin. Wrap the body in a cool, wet towel or use a cooling pad to enhance heat loss. Avoid direct immersion in cold water as it can cause cardiac arrest.
Hydration and Rehydration
Provide cool water for the individual to drink, ideally 1-2 cups (200-400 ml) within the first 15 minutes. Encourage the person to drink slowly and in small amounts to avoid vomiting. Monitor urine output to ensure the person is rehydrating effectively. Aim for urine output to be pale yellow or clear within the first 2-3 hours.
Monitoring and Medical Attention
Monitor the individual’s vital signs, including temperature, pulse, and breathing rate, to assess the severity of heatstroke. If the person’s condition worsens or does not improve, seek medical attention immediately. Call emergency services or transport the person to a hospital if any of the following symptoms occur: confusion or altered mental state, rapid or weak pulse, shallow or rapid breathing, or vomiting.
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