Gram – CSF: 3+ (6-10/oif) neutrophils –2+ (2-10/oif) gram positive bacilli (Listeria monocytogenes) – Shipped February 07, 2022
A simulated CSF sample collected from a 70 year old male with confusion was sent to category A and C1 laboratories. Participants were expected to report the presence of neutrophils and gram positive bacilli.
MAIN EDUCATIONAL POINTS from GS214-1
- In adults, the incidence of bacterial meningitis caused by Listeria monocytogenes increases with age. For this reason, adults aged >50 years should receive an antimicrobial agent with activity against Listeria monocytogenes (ampicillin, penicillin) as part of the empiric regimen (a third-generation cephalosporin plus vancomycin) for treatment of suspected bacterial meningitis.
- Proper handling and interpretation of CSF specimens is critical for both patient management and public health concerns.