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Related Concept Videos

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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Methods of reducing fever01:22

Methods of reducing fever

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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:
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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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Increased Body Temperature01:25

Increased Body Temperature

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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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Thermoregulation01:26

Thermoregulation

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The human body has a sophisticated thermoregulation system that employs negative feedback mechanisms to maintain an optimal core temperature. When the core temperature drops, peripheral and central thermoreceptors send signals to the hypothalamus, activating the heat-promoting center. This center triggers several responses aimed at increasing the core temperature. First, vasoconstriction reduces the flow of warm blood from internal organs to the skin so that the heat is not lost from the skin,...
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Factors Affecting Body Temperature01:28

Factors Affecting Body Temperature

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As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may  include:
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Related Experiment Video

Updated: Jan 19, 2026

Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management
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Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management

Published on: November 21, 2017

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Hypothermia-rewarming: A Double-edged sword?

Yi Hou1, Yuanyuan Qiao2, Ming Xiong2

  • 1CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; Beijing Key Laboratory of Cryo-Biomedical Engineering, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, China.

Medical Hypotheses
|September 22, 2019
PubMed
Summary

Hypothermia, a dangerous drop in body temperature, requires careful rewarming. This study hypothesizes that improper rewarming can cause hypothermia-rewarming injury, similar to reperfusion injury.

Keywords:
HypothermiaRewarming injuryThermoregulation

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Area of Science:

  • Medical Science
  • Physiology
  • Emergency Medicine

Background:

  • Hypothermia is a critical condition where core body temperature falls below 35.0°C.
  • Severe hypothermia presents life-threatening risks including cardiac dysrhythmias and central nervous system depression.
  • Accidental hypothermia, particularly from cold water immersion, poses ongoing risks to maritime and naval personnel.

Purpose of the Study:

  • To investigate the potential for hypothermia-rewarming injury.
  • To explore the analogy between reperfusion injury and potential injury during hypothermia rewarming.
  • To highlight the need for optimized rewarming strategies.

Main Methods:

  • Literature review and hypothesis formulation.
  • Comparative analysis of physiological responses to ischemia-reperfusion and hypothermia.
  • Theoretical modeling of rewarming effects on circulation and oxygen supply.

Main Results:

  • Rewarming is the sole treatment for hypothermia, but current methods show low efficiency.
  • Improper reperfusion and reoxygenation can cause further tissue injury.
  • A hypothesis is proposed: hypothermia-rewarming may induce injury due to impaired circulation and oxygen supply.

Conclusions:

  • Hypothermia-rewarming injury is a plausible phenomenon.
  • Rewarming, while essential, may carry risks if not managed properly.
  • Further research is needed to understand and mitigate hypothermia-rewarming injury.