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

  • Elevated body temperature (above 98.6°F or 37°C)
  • Flushing or redness of the skin
  • Sweating, especially in the early stages
  • Headache
  • Nausea and vomiting
  • Dizziness or lightheadedness
  • Rapid heartbeat
  • Confusion or altered mental state

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

Article last updated on: 15th June 2025.
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