Hyperthermia

Hyperthermia, also known as heat-related illness, occurs when the body's temperature regulation fails, causing the body temperature to rise above 98.6°F (37°C). This can happen due to various factors such as exposure to high temperatures, physical exertion, or certain medical conditions.

Causes

  • Exposure to high temperatures, such as heat waves or sauna use
  • Physical exertion, especially in hot environments
  • Dehydration or inadequate fluid intake
  • Certain medical conditions, such as thyroid disorders or neurological disorders
  • Medications, such as anticholinergics or sympathomimetics

Symptoms

Treatment

Treatment for hyperthermia typically involves cooling the body to a safe temperature and addressing any underlying causes. Methods of cooling include:

  • Moving to a cooler environment
  • Removing excess clothing
  • Applying cool compresses or ice packs
  • Taking cool showers or baths
  • Using fans or air conditioning

Prevention

To prevent hyperthermia, it is essential to:

  • Stay hydrated by drinking plenty of fluids
  • Avoid strenuous activities in hot environments
  • Take regular breaks in cool environments
  • Wear lightweight, light-colored clothing
  • Avoid using certain medications that can increase the risk of hyperthermia

Complications

If left untreated, hyperthermia can lead to serious complications, including:

  • Heat stroke, which can cause brain damage or death
  • Dehydration and electrolyte imbalances
  • Cardiovascular problems, such as heart attacks or arrhythmias
  • Kidney damage or failure

Frequently Asked Questions (FAQs)

What is a high body temperature?
Above 98.6°F (37°C).

What causes a high body temperature?
Infection, inflammation, or environmental factors.

How is body temperature measured?
Oral, rectal, axillary, or tympanic thermometers.

What are symptoms of high body temperature?
Sweating, headache, fatigue, and muscle aches.

When to seek medical attention for high temperature?
If above 103°F (39.4°C) or with severe symptoms.

How to lower a high body temperature?
Rest, hydration, medication, and cool compresses.

Can medications cause high body temperature?
Yes, some antibiotics and vaccines.

Is a high body temperature contagious?
Sometimes, if caused by an infectious disease.

How long does a high body temperature last?
Varies depending on the underlying cause.

Can high body temperature cause complications?
Yes, such as seizures, brain damage, or organ failure.

Article last updated on: 25th June 2025.
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