Fever Of Unknown Origin (FUO) Learning Center

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Welcome

Fever of unknown origin (FUO) refers to the presence of a documented elevation in body temperature for a specified time, for which a cause has not been found after basic medical evaluation. FUO is categorized as classi...

Basic Info

Symptoms
General constitutional symptoms tend to occur along with fever, including muscle aches and pains (myalgias), chills, an...
Causes
General constitutional symptoms tend to occur along with fever, including muscle aches and pains (myalgias), chills, an...
Tests
HIV itself is a potential cause of fever. Fever in an individual with HIV, primary immune deficiency, recent transplant...
Treatments
The development of FUO in certain settings, such as when it is acquired by patients in the hospital or in immunosuppres...
Drugs
  • acetaminophen
  • ibuprofen
  • predniSONE
Alternative Therapies
Alternative treatment. Supporting the immune system is one way to help avoid infection by exposure to bacteria, viruses...
Risk Factors
  • Cat scratch fever
  • EBV Infection
  • HIV Virus
Complications
The outlook for children with FUO depends on the cause of the fever. If no serious disease is found, medications such a...
Prevention
Although FUO cannot actually be prevented because the sources are unknown, the immune system can be strengthened to hel...
Doctor Specialties
When to call the doctor. If a toddler or older child has a fever for more than a day or two (48 to 72 hours), with or w...

Basic Info

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