Heat Exhaustion

The average body temperature is approximately 98.6°F. When the body undergoes strenuous exercise, or overexertion in hot, humid weather, it isn't able to efficiently cool itself to retain a normal temperature. Dehydration, alcohol use, and overdressing also prevent the body from cooling itself correctly.

Symptoms:

Stage 1: Heat Cramps

• Heavy Sweating
• Fatigue
• Thirst
• Muscle Cramps

Stage 2: Heavy Exhaustion

• Heavy Sweating
• Faintness
• Low Blood Pressure
• Nausea
• Low Fever
• Headache
• Dark Urine

Treatment:

If Heat Cramps leads to Heat Exhaustion:

• Rest in a cooler location
• Drink cool fluids
• Apply cool water to the skin
• Rest with legs elevated above heart level

Visit MedExpress if signs or symptoms do not improve within 30 minutes, or if the body temperature reaches 104°F or higher. Untreated Heat Exhaustion can progress to Heatstroke, a life-threatening condition that requires immediate medical attention to prevent permanent damage to the brain and other organs. If Heatstroke is suspected, call 911 immediately.

Download printable PDF (1.7MB)