fever without source (in kids)

17 Jan

fever without source = “Children with fever lasting for one week or less without adequate explanation after a careful history and thorough physical examination.”


fever of unknown origin = same stuff, but with fever >= 8 days (in kids)


at 3-36 month age group:

one series (prior to the introduction of Hib and pneumococcal conjugate vaccines) of 996 febrile children less than 36 months of age:

  • <1 percent had meningitis
  • 10 percent had focal soft tissue infections
  • 30 percent had pneumonia


More commonly, they have pneumonia or a UTI.


Well appearing, fully immunized should receive CXR, UA (if girl under 24 mths and boy under 12 mths)


Submitted by J. Rothstein.


References: uptodate.com article on FUO; FWS; picture


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