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Related Concept Videos

Increased Body Temperature01:25

Increased Body Temperature

7.7K
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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Acute Pharyngitis01:30

Acute Pharyngitis

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Introduction
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:
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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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Acute Pyelonephritis I: Introduction01:27

Acute Pyelonephritis I: Introduction

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Pyelonephritis is a bacterial infection that primarily affects the renal parenchyma and collecting system, including the renal pelvis, tubules, and interstitial tissue of one or both kidneys. It can be classified as either acute—a sudden, severe infection—or chronic, which refers to long-term or recurrent kidney infections.The primary cause of acute pyelonephritis (APN) is bacterial infection, with Escherichia coli accounting for approximately 70-80% of cases. Other bacteria, such...
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Related Experiment Video

Updated: Apr 7, 2026

Separation of Immune Cell Subpopulations in Peripheral Blood Samples from Children with Infectious Mononucleosis
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Separation of Immune Cell Subpopulations in Peripheral Blood Samples from Children with Infectious Mononucleosis

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[Acute fever in children].

Christèle Gras-Le Guen, Élise Launay

    La Revue Du Praticien
    |July 14, 2015
    PubMed
    Summary

    Fever in children can signal serious bacterial infections (SBI) in 7% of cases. Prompt identification of toxic signs and early treatment are crucial, especially for infants aged 1-3 months.

    Area of Science:

    • Pediatric infectious diseases
    • Clinical microbiology
    • Evidence-based medicine

    Context:

    • Fever is a common pediatric symptom, often viral.
    • A significant percentage of children present with fever without an apparent source.
    • Serious bacterial infections (SBI) can manifest initially as fever without source.

    Purpose:

    • To highlight the importance of identifying serious bacterial infections in febrile children.
    • To emphasize the critical role of early toxic sign recognition in clinical examination.
    • To outline specific management strategies for very young children (1-3 months) with fever without source.

    Summary:

    • Fever without source occurs in 7% of children and may indicate serious bacterial infections like pneumonia, meningitis, pyelonephritis, or bacteremia.

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  • Early identification of toxic signs during clinical examination is paramount for timely diagnosis.
  • Infants aged 1-3 months with fever without source require specific management, including systematic investigations and empirical antibiotic therapy due to higher SBI prevalence.

    • Impact:

    • Improved diagnostic accuracy for serious pediatric infections.
    • Enhanced clinical decision-making for febrile infants.
    • Reduced morbidity and mortality associated with untreated serious bacterial infections in children.