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Related Concept Videos

Increased Body Temperature01:25

Increased Body Temperature

7.6K
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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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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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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Disorder of Water Balance01:29

Disorder of Water Balance

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Water balance disorders are medical conditions that occur when there is a deviation from the body's water volume or osmolarity, disrupting normal homeostasis and leading todehydration, hypotonic hydration, hyperhydration, edema, or water intoxication.
Dehydration
Dehydration occurs when the body loses fluids (particularly water).
Causes:
The major causes of dehydration include excessive sweating, fever, vomiting, diarrhea, and diuresis.
Signs and Symptoms:
Symptoms primarily include intense...
2.7K
Homeostatic Imbalances in Body Temperature01:19

Homeostatic Imbalances in Body Temperature

4.3K
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...
4.3K

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Related Experiment Video

Updated: Mar 7, 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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Association Between Dehydration and Fever During the First Week of Life.

Ariane Boutin1,2, Ana Carceller1,2, Marie Pier Desjardins1,2

  • 11 CHU Sainte-Justine, Montreal, Quebec, Canada.

Clinical Pediatrics
|February 16, 2017
PubMed
Summary

Feverish infants under 8 days old often show dehydration, not serious bacterial infection (SBI). Early dehydration detection in newborns may reduce unnecessary aggressive treatments in the pediatric emergency department.

Keywords:
dehydrationfeverneonatesserious bacterial infection

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Area of Science:

  • Pediatrics
  • Neonatal care
  • Emergency medicine

Background:

  • Differentiating serious bacterial infection (SBI) from self-limiting illnesses in febrile infants is challenging.
  • Febrile infants under 8 days old presenting to the pediatric emergency department (PED) require careful evaluation.
  • Understanding the prevalence of dehydration and its association with SBI in this age group is crucial.

Purpose of the Study:

  • To determine the prevalence of dehydration in febrile newborns under 1 week of age.
  • To investigate the relationship between dehydration and SBI in this population.
  • To inform clinical decision-making in the pediatric emergency department.

Main Methods:

  • Retrospective observational study of febrile infants <8 days old in a tertiary care PED.
  • Dehydration defined by plasma sodium >150 mmol/L or >10% birth weight loss.
  • SBI defined by positive blood, urine, or CSF cultures, or specific infections like pneumonia.

Main Results:

  • 17% of 62 eligible infants (27%) were dehydrated.
  • Only 2 infants had SBI; none of the 4 infants with serious infections were dehydrated.
  • Plasma sodium levels in seriously ill infants were <145 mmol/L.

Conclusions:

  • Dehydration is common in febrile infants younger than 8 days in the PED.
  • Early identification of dehydration may help avoid aggressive interventions.
  • Further research may refine diagnostic approaches for febrile neonates.