Which symptom combination best indicates heat stroke rather than heat exhaustion?

Which symptom combination best indicates heat stroke rather than heat exhaustion?

• A. Hot, dry skin with confusion and possible unconsciousness
• B. Sweating and cool, clammy skin
• C. Nausea with mild headache
• D. Severe cramps

Answer: (A)

Heat stroke is a failure of the body's cooling system, so the person can have a very high core temperature with no sweating, leading to hot, dry skin and often altered mental status such as confusion or even unconsciousness. That combination—hot and dry skin plus confusion or unconsciousness—indicates a true heat stroke and requires immediate medical attention. In contrast, heat exhaustion presents with sweating and cool, clammy skin, along with symptoms like dizziness, nausea, and headache. The presence of sweating and cool skin points away from heat stroke toward heat exhaustion or a milder heat illness. Severe cramps are a different heat-related problem and aren’t the hallmark of heat stroke. So the signs of hot, dry skin with confusion or possible unconsciousness are the strongest clue that heat stroke is occurring.

Heat stroke is a failure of the body's cooling system, so the person can have a very high core temperature with no sweating, leading to hot, dry skin and often altered mental status such as confusion or even unconsciousness. That combination—hot and dry skin plus confusion or unconsciousness—indicates a true heat stroke and requires immediate medical attention.

In contrast, heat exhaustion presents with sweating and cool, clammy skin, along with symptoms like dizziness, nausea, and headache. The presence of sweating and cool skin points away from heat stroke toward heat exhaustion or a milder heat illness. Severe cramps are a different heat-related problem and aren’t the hallmark of heat stroke.

So the signs of hot, dry skin with confusion or possible unconsciousness are the strongest clue that heat stroke is occurring.