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Updated: May 21, 2026

08:22
A Preclinical Model of Exertional Heat Stroke in Mice
Published on: July 1, 2021
[Treatment of heat stroke]
1Yokohama City Minato Red Cross Hospital.
Nihon Rinsho. Japanese Journal of Clinical Medicine
|June 14, 2012
Summary
Rapid cooling and organ support are key for heat stroke recovery. Prompt treatment, especially ice-water baths, leads to full recovery within an hour, preventing complications like acute renal failure.
Area of Science:
- Emergency Medicine
- Environmental Health
- Sports Medicine
Context:
- Heat stroke is a life-threatening condition requiring immediate medical intervention.
- Effective management focuses on rapid temperature reduction and organ system support.
- Heat cramps present with muscle pain and can be managed with fluid and electrolyte replacement.
Purpose:
- To outline the critical therapeutic objectives for managing heat stroke.
- To detail effective cooling methods and rehydration strategies.
- To describe treatment protocols for heat cramps.
Summary:
- The primary goals in heat stroke management are immediate cooling and organ system support.
- Ice-water immersion is the most effective cooling method; evaporative cooling is a viable alternative.
- Aggressive intravenous rehydration (24-72 hours) is crucial to prevent rhabdomyolysis-induced acute renal failure, aiming for a urine output of at least 2 mL/kg/h.
- Heat cramps are treated with oral or IV fluid and salt replacement, rest, and potentially IV magnesium sulfate for severe cramping.
Impact:
- Rapid and effective cooling within one hour of symptom onset significantly improves patient outcomes, leading to full recovery.
- Preventing acute renal failure through adequate rehydration is a critical aspect of heat stroke care.
- Understanding these therapeutic strategies is vital for healthcare professionals managing heat-related illnesses.
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Methods of reducing fever
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Pharmacological Methods of Reducing Fever:
Pharmacological Methods of Reducing Fever:
Increased Body Temperature
A body temperature above 38°C (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in response to an infection or illness.
Decreased Body Temperature
A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by sustained extreme cold exposure, and severe...
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Hyperthermia occurs when the body's temperature becomes unusually high, often due to heat exposure, intense physical activity, or certain illnesses. This condition can create a dangerous cycle where elevated body temperature increases the metabolic rate, generating more heat and potentially leading to organ failure and brain damage. A severe form of hyperthermia, called heat stroke, can raise body temperature to life-threatening levels. Fever, on the other hand, is a controlled form of...
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Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
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Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant heat.
Increased pulse rate
Tachycardia is a condition marked by an abnormally fast or irregular heart rate, surpassing the typical resting rate. In adults, tachycardia is characterized by a pulse rate ranging from 100 to 180 beats per minute. The increased heart rate can result in inadequate blood flow to various body parts, ultimately diminishing the oxygen supply to organs and tissues.
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...

