Meningitis is commonly a complication of what? - Answer primary bacteremia
What used to be the primary organism that caused pediatric meningitis? - Answer
Haemophilus influenza type b
Why has the median age for meningitis shifted from age 15mo to 25yrs? - Answer use
of Haemophilus influenzae vaccine
What happens during bacteremia that leads to infection of the meninges? - Answer
Products of bacterial multiplication alter the permeability of the blood brain barrier and
extend the infection to the brain and surrounding cerebrospinal fluid spaces.
What is a less common route of infection? - Answer Hematogenous spread from a
distant primary focal infection, direct extension from adjacent infection, or following
cribriform plate or sinus infection.
What causes the neurologic damage that follows meningitis? - Answer Results from
direct inflammatory effects, brain edema, increased intracranial pressure, decreased
cerebral blood flow, and vascular thrombosis.
What causes increased risk of meningitis? - Answer Impaired splenic function
Immunosuppression/immunodeficiency
What bacterial agents are responsible for meningitis in neonates? - Answer GBS
E. coli
L. monocytogenes
What bacterial agents are responsible for meningitis in older infants and children? -
Answer Strep pneumo
N. meningitidis
Sx of meningitis in infants? - Answer irritability, inconsolability, hypotonia, and lethargy
Sx of meningitis in older children? - Answer headache, photophobia, nausea, vomiting,
neck pain/stiffness
Sx of fulminant meningitis? - Answer shock, seizures, coma, febrile status epilepticus
Rare sx of meningitis in infants? - Answer hypothermia
Diagnostic tests to order. - Answer CSF analysis: WBCs, glucose, protein, Gram stain
and culture
Head CT (if focal neuro signs or increased ICP present)