What is the Bacterial Meningitis Score and how is it used in the diagnosis of viral meningitis?

Updated: Jul 17, 2018
  • Author: Cordia Wan, MD; Chief Editor: Niranjan N Singh, MBBS, MD, DM, FAHS, FAANEM  more...
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In 2007, the Pediatric Emergency Medicine Collaborative Research Committee of the American Academy of Pediatrics published a Bacterial Meningitis Score that clinically predicts whether patients are at high or low risk for having bacterial meningitis versus aseptic meningitis. [13] According to the score, patients have a very low risk for bacterial meningitis if all of the following are absent:

  • Positive CSF Gram stain

  • CSF absolute neutrophil count (ANC) of ≥1000

  • CSF protein of ≥80 mg/dL

  • Peripheral ANC of ≥10,000 cells/mcL

  • Seizure before or at time of presentation

The higher number of criteria present, the higher the chance is that the patient has bacterial meningitis.

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