Peritoneal fluid: Klebsiella pneumoniae + Streptococcus constellatus – Shipped May 09, 2017
A simulated peritoneal fluid sample collected from a 50 year old patient with intra-abdominal sepsis was sent to category A laboratories. Participants were expected to identify Klebsiella pneumoniae and Streptococcus anginosus group. Participants were also expected to report susceptibility results for K. pneumoniae.
MAIN EDUCATIONAL POINTS from M171-5
- The isolation of more than one pathogen in a sample from an intra-abdominal infection is commonplace.
- Depending on the degree of infection identification and susceptibility testing of multiple species may be warranted.
- The large majority of S. anginosus group isolates are predictably susceptible to beta-lactam agents.
- It is rarely necessary to sub-speciate members of the S. anginosus group.