Table 2.
CSF picture in meningitis
CSF parameter | Normal | Bacterial meningitis | Viral meningitis | Tubercular meningitis | Fungal meningitis |
---|---|---|---|---|---|
Opening pressure | 5–20 cm H2O | Elevated | Normal | Normal | Normal or elevated |
Cell count | <5 cells/mm3 | >1000/mm3 | <1000/mm3 | 100–500/mm3 | 100–500/mm3 |
Cell predominance | Nil | Neutrophils | Lymphocytes | Lymphocytes | Lymphocytes |
CSF glucose | >2/3rd of serum glucose | Low | Normal | Low | Low |
CSF proteins | <45 mg/dL | Elevated | Normal/ elevated | Elevated | Elevated |