1.) Are there any elements on H&P that make you suspect viral meningitis in adult patients? Do you LP all patients you suspect have viral meningitis?
3.) Do you use CSF lactate or other cytochemical markers to differentiate between viral and bacterial meningitis? Do you send anything beyond a standard meningitis panel for immunocompetent patients? When and what?
4.) When do you admit a patient, post-LP, who appears to have viral meningitis? What anti-microbial agents do you administer these patients, if any?