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Related Concept Videos

Increased Body Temperature01:25

Increased Body Temperature

6.3K
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...
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Homeostatic Imbalances in Body Temperature01:19

Homeostatic Imbalances in Body Temperature

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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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Types of Fever01:25

Types of Fever

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Fever can be triggered by several factors, including infections, nervous system disorders, certain cancers, blood diseases like leukemia, embolism, thrombosis, heatstroke, dehydration, surgical trauma, crushing injuries, and allergic reactions.
Here are the different types of fever:
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Methods of reducing fever01:22

Methods of reducing fever

1.1K
The signs and symptoms of fever include hot and dry skin, flushed face, thirst, muscle aches, anorexia, headache, tachycardia, tachypnea, and fatigue. Elevated body temperature is reduced using two methods: pharmacological and nonpharmacological. Proper identification and treatment of the root cause of a fever is of utmost importance.
Pharmacological Methods of Reducing Fever:
1.1K
Decreased Body Temperature01:29

Decreased Body Temperature

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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...
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Skeletal Muscle Relaxants: Therapeutic Uses01:31

Skeletal Muscle Relaxants: Therapeutic Uses

822
Skeletal muscle relaxants are used to relax muscle tone and alleviate painful muscle contractions. However, the choice of skeletal muscle relaxants depends on the duration of the surgical procedure in order to minimize potential side effects. Skeletal muscle relaxants like neuromuscular blocking agents [NMBAs] are commonly employed as adjuvants alongside general anesthetics in clinical settings. NMBAs are also used to maintain controlled ventilation during surgery of the larynx or pharynx...
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Related Experiment Video

Updated: Dec 29, 2025

Protocol for Long Duration Whole Body Hyperthermia in Mice
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Protocol for Long Duration Whole Body Hyperthermia in Mice

Published on: August 25, 2012

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Malignant Hyperthermia Update.

Herodotos Ellinas1, Meredith A Albrecht1

  • 1Department of Anesthesiology, Medical College of Wisconsin, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA.

Anesthesiology Clinics
|February 4, 2020
PubMed
Summary
This summary is machine-generated.

Malignant hyperthermia (MH) is a rare, inherited muscle disorder causing a hypermetabolic state. Early identification and safe anesthetic management are crucial for preventing severe complications and improving patient outcomes.

Keywords:
Caffeine-halothane contracture testCharcoal filtersDantroleneMHAUSMalignant hyperthermia

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Area of Science:

  • Anesthesiology
  • Genetics
  • Pharmacology

Background:

  • Malignant hyperthermia (MH) is a rare, life-threatening skeletal muscle disorder.
  • It is characterized by a hypermetabolic state triggered by specific anesthetic agents.
  • MH follows an autosomal dominant inheritance pattern with variable expressivity.

Purpose of the Study:

  • To review the pathophysiology, clinical manifestations, and diagnostic methods for Malignant hyperthermia.
  • To emphasize the importance of identifying MH-susceptible individuals for safe anesthetic practices.
  • To highlight advancements in MH management and improved mortality rates.

Main Methods:

  • Review of current literature on Malignant hyperthermia.
  • Discussion of diagnostic gold standards, including the contracture test.
  • Inclusion of information on genetic testing availability.

Main Results:

  • Malignant hyperthermia presents with a hypermetabolic state, including increased CO2 production, acidosis, and temperature.
  • Late diagnosis can lead to multi-organ failure and death.
  • Current mortality rates for MH have decreased to less than 5%.

Conclusions:

  • MH-susceptible individuals require careful anesthetic management to prevent triggering events.
  • The contracture test remains the gold standard for diagnosing MH susceptibility.
  • Genetic testing offers an alternative diagnostic approach for MH.