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1. • • Fever of unknown origin (FUO) is body temperature ≥ 38.3° C (≥ 101° F) rectally that does not result from transient and self-limited illness, rapidly fatal illness, or disorders with clear-cut localizing symptoms or signs or with abnormalities on common tests such as chest radiograph, urinalysis, or blood cultures.
     www.merckmanuals.com/professional/infectious-diseases/biology-of-infectious-disease/fever-of-unknown-origin-fuo

     Fever of Unknown Origin (FUO) - Fever of Unknown Origin (FUO ...

2. www.ncbi.nlm.nih.gov › books › NBK532265Fever of Unknown Origin - StatPearls - NCBI Bookshelf

   www.ncbi.nlm.nih.gov › books › NBK532265

   Aug 14, 2023 · Fever of unknown origin (FUO) was first described by Dr. Petersdorf and Dr. Beesom in 1961. FUO was defined as a temperature of 101 degrees Fahrenheit (38.3 degrees Centigrade) or higher with a minimum duration of three weeks without an established diagnosis after an intensive one-week investigation in the hospital.

   • Author: Ilona Brown, Nancy A. Finnigan
   • Published: 2023/08/14

   • Publish Year: 2021

3. www.merckmanuals.com › fever-of-unknown-origin-fuoFever of Unknown Origin (FUO) - Fever of Unknown Origin (FUO ...

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   Jul 9, 2024 · Fever of unknown origin (FUO) is body temperature ≥ 38.3° C (≥ 101° F) rectally that does not result from transient and self-limited illness, rapidly fatal illness, or disorders with clear-cut localizing symptoms or signs or with abnormalities on common tests such as chest radiograph, urinalysis, or blood cultures.

   • Author: Larry M. Bush

4. Videos

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     An Approach to Fever of Unknown Origin (FUO)

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     Fever Of Unknown Origin: Definition, causes and approach | FUO

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     Fever of Unknown Origin (FUO) - Causes. Unexplained Fever, Low grade fever

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5. www.aafp.org › pubs › afpFever of Unknown Origin in Adults | AAFP

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   Fever of unknown origin is defined as a clinically documented temperature of 101°F or higher on several occasions, coupled with an unrevealing diagnostic workup. The differential diagnosis is...

6. www.uptodate.com › contents › fever-of-unknownFever of unknown origin in adults: Evaluation and management

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   Nov 28, 2023 · Clinicians commonly refer to a febrile illness without an initially obvious etiology as fever of unknown origin (FUO). However, most febrile illnesses either resolve before a diagnosis can be made or develop distinguishing characteristics that lead to a diagnosis.

7. emedicine.medscape.com › article › 217675-clinicalFever of Unknown Origin (FUO) Clinical Presentation - Medscape

   emedicine.medscape.com › article › 217675-clinical

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   Fever of Unknown Origin (FUO) Clinical Presentation. Updated: Apr 10, 2024. Author: Sandra G Gompf, MD, FACP, FIDSA; Chief Editor: Michael Stuart Bronze, MD more... Print. History. The history...

8. emedicine.medscape.com › article › 217675-Fever of Unknown Origin (FUO): Practice Essentials ... - Medscape

   emedicine.medscape.com › article › 217675-

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   Apr 10, 2024 · The syndrome of fever of unknown origin (FUO) was defined in 1961 by Petersdorf and Beeson as the following: (1) a temperature greater than 38.3°C (101°F) on several...

9. People also ask

   What is fever of unknown origin (FUO)?

   • Last Update: August 14, 2023. Fever of unknown origin (FUO) was first described by Dr. Petersdorf and Dr. Beesom in 1961. FUO was defined as a temperature of 101 degrees Fahrenheit (38.3 degrees Centigrade) or higher with a minimum duration of three weeks without an established diagnosis after an intensive one-week investigation in the hospital.

   Fever of Unknown Origin - StatPearls - NCBI Bookshelf

   www.ncbi.nlm.nih.gov/books/NBK532265/

   See all results for this question

   What are the key features of fever of unknown origin (FUO)?

   • Key features of fever of unknown origin (FUO), also known as pyrexia of unknown origin (PUO), are as follows: Unexplained fevers are worrisome to patients and clinicians, but most persistent fevers are diagnosed, and often within 1 week of hospital evaluation or 3 outpatient visits.

   Fever of Unknown Origin (FUO) | Medscape

   emedicine.medscape.com/article/217675-overview

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   What is a recurrent fever of unknown origin (FUO)?

   • Recurrent fever of unknown origin (FUO): aseptic meningitis, hepatosplenomegaly, pericarditis and a double quotidian fever due to juvenile rheumatoid arthritis (JRA). [Heart Lung. 2012] Fever of unknown origin (FUO). II. Diagnostic procedures in a prospective multicenter study of 167 patients. The Netherlands FUO Study Group.

   Fever of Unknown Origin - StatPearls - NCBI Bookshelf

   www.ncbi.nlm.nih.gov/books/NBK532265/

   See all results for this question

   How do you know if you have a fever of unknown origin?

   • The history can provide important clues to fever of unknown origin (FUO) due to zoonoses, malignancies, and inflammatory/immune disorders. In adults with FUO, inquire about symptoms involving all major organ systems and obtain a detailed history of general symptoms (eg, fever, weight loss, night sweats, headaches, rashes).

   Fever of Unknown Origin (FUO) Clinical Presentation - Medscape

   emedicine.medscape.com/article/217675-clinical

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   How many cases of fever of unknown origin are there?

   • Mansueto P, Di Lorenzo G, Rizzo M, Di Rosa S, Vitale G, Rini G, Mansueto S, Affronti M. Fever of unknown origin in a Mediterranean survey from a division of internal medicine: report of 91 cases during a 12-year-period (1991-2002). Intern Emerg Med. 2008 Sep;3(3):219-25. [PubMed]

   Fever of Unknown Origin - StatPearls - NCBI Bookshelf

   www.ncbi.nlm.nih.gov/books/NBK532265/

   See all results for this question

   Are human herpes viruses associated with classic Fever of unknown origin (FUO)?

   • 28. Zhou W, Tan X, Li Y, Tan W. Human herpes viruses are associated with classic fever of unknown origin (FUO) in Beijing patients. PLoS One 2014;9 (7):e101619-e101619.

   Fever of Unknown Origin | New England Journal of Medicine

   www.nejm.org/doi/full/10.1056/NEJMra2111003

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10. www.nejm.org › doi › fullFever of Unknown Origin | New England Journal of Medicine

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    Feb 2, 2022 · In 1961, Petersdorf and Beeson defined fever of unknown origin (FUO) as a temperature of 38.3°C or higher for at least 3 weeks without a diagnosis, despite 1 week of inpatient...