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Related Concept Videos

Increased Body Temperature01:25

Increased Body Temperature

5.1K
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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Patterns of Fever01:26

Patterns of Fever

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Before understanding the types and patterns of fever, it is essential to know its phases.
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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

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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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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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Updated: Oct 21, 2025

Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management
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Defining Fever.

Philip A Mackowiak1, Frank A Chervenak2, Amos Grünebaum2

  • 1Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA.

Open Forum Infectious Diseases
|September 3, 2021
PubMed
Summary
This summary is machine-generated.

Fever is frequently mentioned in medical studies but rarely defined. Without specifying minimum temperature, thermometer type, or measurement site, the term "fever" lacks clear clinical meaning.

Keywords:
COVID-19Wunderlichfevernormal rangetemperaturethermometer

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Area of Science:

  • Medical Informatics
  • Clinical Terminology
  • Biomedical Research

Background:

  • The term "fever" is widely used in clinical literature.
  • Lack of standardized definitions for "fever" hinders consistent interpretation.

Purpose of the Study:

  • To evaluate the definition and measurement standards of "fever" in clinical publications.
  • To highlight the ambiguity in the current use of the term "fever".

Main Methods:

  • Literature review of clinical publications mentioning "fever".
  • Analysis of definitions provided for "fever" regarding temperature thresholds, measurement devices, and body sites.

Main Results:

  • "Fever" is often used without specifying the minimum temperature threshold.
  • Details regarding the type of thermometer and the site of temperature measurement are frequently omitted.
  • Inconsistency in reporting measurement parameters renders the term "fever" ambiguous.

Conclusions:

  • The clinical definition of "fever" is often incomplete and lacks standardization.
  • Standardized reporting of temperature thresholds, thermometer types, and measurement sites is crucial for clarity.
  • Consistent definitions are necessary for accurate clinical communication and research reproducibility.