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01:25Increased 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.
01:25Types of Fever
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:
Here are the different types of fever:
01:19Homeostatic Imbalances in Body Temperature
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...
01:22Methods of reducing fever
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:
Pharmacological Methods of Reducing Fever:
01:28Factors Affecting Body Temperature
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:
Factors may include:
01:26Patterns of Fever
Before understanding the types and patterns of fever, it is essential to know its phases.
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Related Experiment Video
Updated: Jul 9, 2026
08:22
A Preclinical Model of Exertional Heat Stroke in Mice
Published on: July 1, 2021
[Fever as a prognostic factor for heat stroke].
Aurélia Marfisi1, Annick Genty, Tristan Ferry
1Pôle d'activité d'urgences et réanimation médicale, Groupement hospitalier Edouard Herriot, Hospices civils de Lyon, Université Claude Bernard Lyon 1, F-69437 Lyon Cedex 03, France.
Presse Medicale (Paris, France : 1983)
|December 18, 2007
Summary
Classic heatstroke carries a poor prognosis, especially in temperate climates. Initial fever greater than or equal to 41°C is a significant predictor of mortality, highlighting the need for rapid temperature reduction.
Area of Science:
- Environmental Medicine
- Emergency Medicine
- Clinical Toxicology
Context:
- Classic heatstroke is infrequent in Europe, and its clinical presentation in temperate regions is not well-documented.
- This study investigated heatstroke cases during a heatwave in August 2003.
- The research focused on patients admitted via the emergency department.
Purpose:
- To determine the clinical characteristics and prognosis of classic heatstroke in a temperate climate.
- To assess the impact of initial body temperature on heatstroke outcomes.
- To evaluate the influence of fever on survival rates in heatstroke patients.
Summary:
- A total of 63 patients with heatstroke (core body temperature >= 40°C and neurological symptoms without sepsis) were analyzed.
- Mortality rates were high: 59% at 28 days and 67% at 1 year.
- Patients with an initial temperature below 41°C had a significantly better survival probability compared to those with temperatures of 41°C or higher (p<0.001).
Impact:
- Initial body temperature is a critical, easily identifiable prognostic factor in heatstroke.
- Prompt temperature reduction, particularly when exceeding 41°C, should be prioritized in clinical management.
- Findings may inform future treatment strategies for heatstroke, aiming to improve patient outcomes.