Heat Exhaustion

Heat exhaustion is a heat-related illness that occurs when the body loses too much water and salt through excessive sweating, causing an imbalance in bodily fluids.

Causes

Heat exhaustion is often caused by:

• Prolonged exposure to high temperatures
• Strenuous physical activity in hot weather
• Inadequate fluid intake
• Wearing heavy or dark clothing that traps heat
• Certain medical conditions, such as heart disease or diabetes
• Medications that affect the body's ability to regulate temperature

Symptoms

The symptoms of heat exhaustion may include:

• Heavy sweating
• Pale, cool, and clammy skin
• Fast and weak pulse
• Nausea or vomiting
• Dizziness or fainting
• Headache
• Fatigue or weakness
• Rapid breathing
• Muscle cramps

Treatment

Treatment for heat exhaustion typically involves:

• Moving to a cool, well-ventilated area
• Removing excess clothing
• Drinking cool water or sports drinks to replenish fluids and electrolytes
• Taking regular breaks to rest and cool off
• Avoiding strenuous activities for at least 24 hours
• Seeking medical attention if symptoms worsen or last longer than 15 minutes

Prevention

To prevent heat exhaustion, it is recommended to:

• Stay hydrated by drinking plenty of water and electrolyte-rich fluids
• Avoid strenuous activities during the hottest part of the day (usually between 11am and 3pm)
• Wear lightweight, light-colored clothing that allows for good airflow
• Take regular breaks to rest and cool off in a shaded or air-conditioned area
• Avoid leaving children or pets unattended in vehicles, as the temperature can quickly become life-threatening

Complications

If left untreated, heat exhaustion can lead to more serious complications, including:

• Heat stroke, a life-threatening condition that occurs when the body's temperature regulation fails
• Dehydration, which can cause seizures, brain damage, and even death
• Organ damage, such as kidney or liver failure

When to Seek Medical Attention

Seek medical attention immediately if you or someone else experiences:

• Severe symptoms that last longer than 15 minutes
• Confusion, seizures, or loss of consciousness
• Vomiting or diarrhea that lasts more than 1 hour
• Fever above 103°F (39.4°C)
• Signs of dehydration, such as excessive thirst, dark urine, or decreased urine output

Frequently Asked Questions (FAQs)

What is heat exhaustion?
A heat-related illness that occurs when the body loses too much water and salt.

What are the symptoms of heat exhaustion?
Heavy sweating, pale skin, fast pulse, nausea, dizziness, headache.

What causes heat exhaustion?
Prolonged exposure to high temperatures, humidity, physical activity.

Who is at risk for heat exhaustion?
Older adults, young children, people with chronic illnesses.

How is heat exhaustion diagnosed?
Physical exam, medical history, body temperature check.

What is the treatment for heat exhaustion?
Rest, cool environment, hydration, electrolyte replacement.

Can heat exhaustion be prevented?
Yes, by staying hydrated, taking breaks, wearing light clothing.

How long does it usually take to recover from heat exhaustion?
Typically 1-3 days with proper treatment.

What are the complications of heat exhaustion?
Dehydration, seizures, heat stroke, organ damage.

When should I seek medical attention for heat exhaustion?
If symptoms worsen, last longer than 15 minutes, or are severe.