If suspected,<unk>  is diagnosed by testing blood and cerebrospinal fluid for pathogens. Identifying the specific pathogen is necessary to determine the proper course of treatment and the prognosis. Measurement of opening pressure, cell count with differential, glucose and protein concentrations, Gram's stain, India ink, and culture tests should be performed on cerebrospinal fluid when<unk>  is suspected.
Fungal meningitis
Aseptic meningitis
Herpesviral meningitis
Viral meningitis
Drug-induced aseptic meningitis
Tuberculous meningitis
Viral encephalitis
Herpesviral encephalitis