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Related Concept Videos

Increased Body Temperature01:25

Increased Body Temperature

707
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...
707
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:
404
Methods of reducing fever01:22

Methods of reducing fever

699
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:
699
Assessing Body Temperature - Rectal01:27

Assessing Body Temperature - Rectal

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Rectal temperature measurement is considered the most precise method for assessing core body temperature and typically registers higher than oral temperature. For adults, the rectal thermometer should be inserted 1 to 1.5 inches into the rectum to obtain the most accurate reading.
Follow these steps for rectal temperature assessment:
Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
Step 2: Position the patient in a side-lying position to better visualize the rectal...
4.6K
Decreased Body Temperature01:29

Decreased Body Temperature

647
A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by...
647

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Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management
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57-Year-Old Male Veteran with Recurrent Fevers.

Eileen Chu1, Samantha A King2, Laura J Bontempo2

  • 1University of Maryland Medical Center, Baltimore, Maryland.

Clinical Practice and Cases in Emergency Medicine
|August 18, 2023
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Summary
This summary is machine-generated.

A 57-year-old veteran experienced recurrent fevers for 10 days with a benign exam. This case highlights the diagnostic challenges and evaluation of fever of unknown origin (FUO).

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Area of Science:

  • Internal Medicine
  • Infectious Diseases
  • Diagnostic Challenges

Background:

  • Fever of unknown origin (FUO) presents a diagnostic challenge in clinical practice.
  • Prompt evaluation is crucial for effective patient management.
  • A 57-year-old male veteran with a 10-day history of recurrent fevers was admitted to the emergency department.

Purpose of the Study:

  • To explore the differential diagnosis of FUO.
  • To detail the evaluation process for FUO in a clinical setting.
  • To present an interesting case of FUO in a veteran population.

Main Methods:

  • Case report presentation.
  • Review of diagnostic workup for FUO.
  • Discussion of differential diagnoses based on patient presentation.

Main Results:

  • The patient presented with recurrent fevers and a generally unremarkable physical examination.
  • The initial presentation suggested a broad range of potential underlying causes.

Conclusions:

  • Fever of unknown origin requires a systematic and comprehensive diagnostic approach.
  • The differential diagnosis for FUO is extensive and must be carefully considered.
  • This case underscores the importance of thorough evaluation in patients with prolonged fever without an apparent source.