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01:26Patterns of Fever
Before understanding the types and patterns of fever, it is essential to know its phases.
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:
01:22Methods 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:
01:29Decreased Body Temperature
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 sustained extreme cold exposure, and severe...
01:26Stages of Infection
Stages of infection describe what happens to a susceptible host once a pathogen invades the human body. The stages of infection are incubation, prodromal, illness, stage of decline, and convalescence. The incubation stage is the period from exposure to a pathogen until symptoms start. The infected person is unaware of impending illness as the pathogens grow and multiply within the body. The duration may vary depending on the type of infection. The incubation period of measles averages ten to...
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Updated: May 23, 2026
06:43
Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management
Published on: November 21, 2017
Fever in the returning traveller.
1Gartnavel General Hospital, Glasgow, UK. david.bell@ggc.scot.nhs.uk
The Journal of the Royal College of Physicians of Edinburgh
|March 24, 2012
Summary
Returning travelers with fever need a systematic approach for diagnosing tropical illnesses like malaria and dengue. Prompt medical attention is crucial for severe infections, guiding effective treatment.
Area of Science:
- Tropical medicine
- Infectious diseases
- Public health
Background:
- International travel is increasing, leading to a rise in febrile illnesses among returning travelers.
- Diagnosing tropical fevers requires a broad differential and a systematic approach due to diverse etiologies.
Purpose of the Study:
- To outline a systematic approach for diagnosing and managing febrile illnesses in travelers returning from the tropics.
- To highlight key infectious diseases to consider, diagnostic clues, and management strategies for imported fevers.
Main Methods:
- Review of important imported infections, diagnostic clues from history, examination, and investigations.
- Emphasis on specific tests like repeated malaria testing and blood cultures for at-risk travelers.
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Main Results:
- Key infections include malaria, dengue, enteric fever, rickettsial infections, and HIV seroconversion.
- Detailed patient history (travel destinations, dates, activities, symptoms) is crucial for diagnosis.
Conclusions:
- A systematic diagnostic and management strategy is essential for febrile travelers returning from the tropics.
- Early recognition and prompt treatment of infections like malaria and enteric fever are critical due to potential rapid deterioration.