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Related Concept Videos

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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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.
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Patterns of Fever01:26

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Methods of reducing fever01:22

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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.
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Skin Diseases and Disorders01:23

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Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
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Introduction
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A 47-Year-Old Man with Fever and Rash.

Alexander Kumachev1, Nisha Andany1, Weei-Yuarn Huang1

  • 1The Internal Medicine, Infectious Diseases, and Laboratory Medicine Training Programs, University of Toronto.

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|February 6, 2024
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Summary
This summary is machine-generated.

This case study explores the diagnostic approach for a 47-year-old man presenting with fever, rash, and muscle aches. It outlines key considerations for evaluating these common yet potentially serious symptoms.

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Area of Science:

  • Internal Medicine
  • Infectious Diseases
  • Clinical Diagnostics

Background:

  • Fever, rash, and myalgia are non-specific symptoms that can indicate a wide range of conditions.
  • A systematic approach is crucial for accurate diagnosis and timely management.

Observation:

  • A 47-year-old male presented with a constellation of fever, a diffuse rash, and significant muscle aches.
  • The patient's history and physical examination findings are critical for narrowing the differential diagnosis.

Findings:

  • The differential diagnosis for fever, rash, and myalgia is broad, encompassing infectious (viral, bacterial, fungal, parasitic), inflammatory, and neoplastic causes.
  • Diagnostic evaluation should be guided by the specific characteristics of the rash, fever pattern, and associated symptoms.

Implications:

  • Prompt and accurate diagnosis is essential to initiate appropriate treatment and prevent complications.
  • Understanding the differential diagnosis aids clinicians in managing patients with undifferentiated febrile exanthems effectively.