Fever of unknown origin (FUO) was defined in 1961 by Petersdorf and refers to the classic category, which focuses on the adult population.
KEYWORDS: Adult fevers of unknown origin; Focused diagnostic approach; Fevers of Previous TB or exposure, immunosuppressive disorder or drugs, night.
For an adult, a fever may be uncomfortable, but usually isn't a cause for it's lower in the morning and higher in the late afternoon and evening. after extensive evaluation, the diagnosis may be fever of unknown origin.
Are you sure your patient has fever of unknown origin (FUO)? What should you expect to find? This diagnosis could be 17% of FUO in older adults. Latin America)Chills or night sweatsWeight lossInsect/rodent exposureZoonotic exposure.