ID - Meningitis Flashcards
Consider neisseria meningitis if what PE finding?
Signs of meningitis with purpuric skin rash
Patient suspected meningitis: diagnostic test to confirm?
Lumbar puncture
Papilledema? Funduscopic examination would reveal?
Swelling of the optic nerve caused by increased the cranial pressure
See hazy optic disc margin
Most common causes of meningitis?
- Strep pneumonia
- Neisseria meningitis
- Group B strep (Streptococcus agalactiae).
- Listeria
- H influenza
Suspect group B strep Meningitis in?
#Neonates # older than 50 with diabetes or liver disease
Suspect Listeria meningitis in?
Pregnant women, neonates, elderly, AIDS patients, alcoholics
How do bacteria usually get to meninges?
Seed the oropharynx, then move hematogenously
Causes of meningitis after neurologic procedures?
Staph aureus and staff epidermidis
Complications of inflammation due to meningitis?
Seizures, increased intracranial pressure, stroke
Nuchal rigidity?
When passive or active flexion of the neck results in inability to touch the chin to chest
Kernig vs Brudzibski sign?
Flex hip and knee and then passively extend. Positive if you elicits pain
Versus
Patient flexes knees and hips when their neck is passively flexed
Pt with severe headache with symptoms of gastroenteritis. Cause of meningitis?
Enterovurus
Causes meningitis in HIV patients?
Cryptococcus, TB
If patient has focal neurologic findings consider?
Intracranial empyema or brain/epidural abscess
Signs of subarachnoid hemorrhage?
- Photophobia
- Gossly bloody CSFs
- Xanthochromic chromic supernatant