On a hot day at a construction site, a worker has become dizzy, sweating heavily, and his skin is cool to the touch. Based on these signs, what is he suffering from?

On a hot day at a construction site, a worker has become dizzy, sweating heavily, and his skin is cool to the touch. Based on these signs, what is he suffering from?

• A. Dehydration
• B. Heat stroke
• C. Heat cramps
• D. Heat exhaustion

Answer: (D)

Focusing on how heat-related illnesses present helps explain why heat exhaustion is the best fit here. When someone is overheating but still able to sweat, the skin tends to be moist and cool or clammy, and they may feel dizzy or weak. That pattern matches heat exhaustion: the body is trying to cool itself with sweating, but the person is starting to fail to cope with the heat. Heat stroke would show hot, dry skin and often confusion or unconsciousness because the body's cooling system has failed. Dehydration can be part of the picture, but signs like dry mouth and dry skin without the cool, sweaty skin pattern aren’t as specific. Heat cramps are mainly painful muscle cramps, typically with dehydration, but dizziness and cool, clammy skin aren’t the defining signs. If this occurs, move the person to shade or a cooler area, loosen tight clothing, and apply a fan or cool compresses. If they can drink, give small sips of water or an electrolyte drink. Monitor for worsening symptoms like confusion, vomiting, or fainting, and seek urgent help if those appear or if symptoms don’t improve.

Focusing on how heat-related illnesses present helps explain why heat exhaustion is the best fit here. When someone is overheating but still able to sweat, the skin tends to be moist and cool or clammy, and they may feel dizzy or weak. That pattern matches heat exhaustion: the body is trying to cool itself with sweating, but the person is starting to fail to cope with the heat. Heat stroke would show hot, dry skin and often confusion or unconsciousness because the body's cooling system has failed. Dehydration can be part of the picture, but signs like dry mouth and dry skin without the cool, sweaty skin pattern aren’t as specific. Heat cramps are mainly painful muscle cramps, typically with dehydration, but dizziness and cool, clammy skin aren’t the defining signs.

If this occurs, move the person to shade or a cooler area, loosen tight clothing, and apply a fan or cool compresses. If they can drink, give small sips of water or an electrolyte drink. Monitor for worsening symptoms like confusion, vomiting, or fainting, and seek urgent help if those appear or if symptoms don’t improve.