What is considered a normal WBC count in adult CSF?

• < 5/microL (with no more than 1 being a polymorphonuclear cell)


• consider correcting WBC count for RBCs by subtracting 1 WBC from total for every 700 RBCs

Straus, Sharon MD, et. al. "How Do I Perform a Lumbar Puncture and Analyze the Results to Diagnose Bacterial Meningitis?" JAMA. 25 Oct 2006.