Classic definition
Repeated fever >38.3° C
Fever duration at least 3 weeks
Diagnosis remains uncertain (1) after 1 week of study in the hospital.
Categories of fever of unknown origi...
Treatment depends on the specific etiology.
Consider discontinuation of recently started or potentially offending medications.
Empiric therapy is not recommended in patients wi...
Algorithms: Fever in the First 3 Months of Life; Fever of Unknown Origin (FUO)
A sequential approach to FUO based on a careful history, physical examination, with targeted testing and imaging typically yields an appropriate diagnosis and avoids excessive nontarge...
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