Heat exhaustion temperature: what to know

Heat exhaustion develops when the body loses more fluid and salt through sweating than it can replace. Temperature may be elevated, but the person may still be sweating and alert. A temperature reading alone cannot distinguish heat exhaustion from more serious heat illness. Notice the whole picture: hot surroundings, prolonged exertion, clammy skin, fatigue, muscle cramps, headache, or light-headedness. Dehydration can accompany heat exhaustion, especially when thirst and dark urine appear.

Stop activity and move the person to shade or an air-conditioned place. Loosen extra clothing, place cool wet cloths on the skin, and use a fan if available. If they are awake and able to swallow, offer frequent small sips of cool water or an oral rehydration drink. Do not leave them alone while symptoms continue, and do not return to exercise or outdoor heat until fully recovered.

Call emergency services if the person becomes confused, faints, has a seizure, cannot drink, has trouble breathing, or develops very hot skin with worsening symptoms. Seek medical advice promptly when cooling and fluids do not bring clear improvement, when vomiting prevents drinking, or when dizziness is severe. Heat stroke can progress quickly and needs emergency treatment; do not delay for another temperature reading.

Ask which fluid is suitable if you take medicines for blood pressure, heart disease, or kidney problems. Discuss whether your symptoms fit heat exhaustion, how long to rest before resuming activity, and how to prevent another episode during UAE heat.