An emergency medical services team brings a 58-year-old male to the emergency department following a new-onset generalized tonic-clonic seizure. His wife reports that he had been complaining of a progressively worsening headache, severe neck stiffness, and subjective fevers for the past 48 hours. His temperature is 39.4°C (102.9°F), blood pressure is 112/68 mmHg, and pulse is 118/min. On physical examination, the patient is obtunded and grimaces upon neck flexion. Funduscopic examination shows no papilledema, but a detailed neurologic exam reveals a new right-sided pronator drift.
Arrange the following interventions in the most appropriate chronological sequence for this patient's management.
- 1Obtain two sets of blood cultures
- 2Administer empiric intravenous antibiotics and dexamethasone
- 3Perform a noncontrast head CT scan
- 4Perform a lumbar puncture
Answer
The correct sequence for managing suspected bacterial meningitis with high-risk features is to first obtain blood cultures, immediately administer empiric antibiotics and dexamethasone, perform a noncontrast head CT scan, and finally perform a lumbar puncture.
In the management of suspected bacterial meningitis, the first step is always to obtain blood cultures. If the patient has any indications for neuroimaging before a lumbar puncture (e.g., altered mental status, new-onset seizure, focal neurologic deficit, papilledema, or an immunocompromised state), empiric antibiotics and dexamethasone must be administered immediately after the blood cultures are drawn. The CT scan is then performed to ensure there is no mass effect that could lead to herniation during a lumbar puncture. Finally, the lumbar puncture is performed.
Step-by-Step Solution
Key Concept
Management sequencing for suspected bacterial meningitis in patients with indications for cranial imaging before lumbar puncture.
Estimated Time:1m 30s