What clinical signs define heat exhaustion and its immediate management?

• A. Fatigue, dizziness, nausea, sweating; management includes moving to shade, fluid/electrolyte replacement, cooling measures, and monitoring
• B. Severe hyperthermia with confusion
• C. No sweating
• D. Eating sugar-rich foods

Answer: (A)

Heat exhaustion shows up when the body can’t keep cool because of fluid and electrolyte loss from sweating, so you feel fatigue, lightheadedness, nausea, and you’re still sweating. The crucial idea is that sweating is present and mental status is typically normal, which helps distinguish it from more dangerous heat illnesses.

Immediate management aims to rapidly reduce heat and restore fluids. Move the person to a shaded or cooler area, stop activity, loosen or remove tight clothing, and give fluids with electrolytes if they can drink (small, frequent sips). Begin cooling with cool damp cloths or a fan, and place cold packs on the neck, armpits, and groin to speed cooling. Monitor vital signs and urine output.

If symptoms worsen or there are any signs of confusion, fainting, vomiting, or if heat stroke is suspected (very high temperature, altered consciousness), seek emergency care right away. The other options describe conditions or signs not characteristic of heat exhaustion—severe hyperthermia with confusion is heat stroke, no sweating points to a more severe heat illness, and eating sugar-rich foods is not related to heat illness management.