From IDWiki



  • Typically confirmed by lumbar puncture demonstrating pleocytosis, with or without MRI brain
Parameter Normal Bacterial Viral Tuberculous Fungal
Opening pressure 12 to 20 cmH2O raised normal or raised raised raised
Appearance clear cloudy clear clear or cloudy clear or cloudy
WBC count <5 >100 5 to 100 5 to 500 5 to 500
Differential PMN lymphocyte lymphocyte lymphocyte
Protein 0.4 g/L high somewhat high very high high
Glucose >2/3 of plasma very low normal to low very low low