What is the role of the complete blood count (CBC) in the diagnosis of brucellosis?

Updated: Apr 22, 2021
  • Author: Nicholas John Bennett, MBBCh, PhD, FAAP, MA(Cantab); Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

A complete blood count (CBC) typically is ordered routinely as part of an evaluation for a patient with potential infectious disease. Leukocytosis is rare in brucellosis, and a significant number of patients are neutropenic. Anemia is reported in 75% of patients (particularly with chronic infection), thrombocytopenia is reported in 40% (secondary to hepatosplenomegaly or from immune thrombocytopenia), and pancytopenia is reported in 6% of patients.

 

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