M132-3

Leg Wound (c.G132): Aeromonas hydrophila  – Shipped August 2013

HISTORY

The challenge was sent to category A and B laboratories. The sample was a simulated leg wound swab obtained from a 24 year old male with a water skiing injury.

Participants were expected to isolate and identify Aeromonas hydrophila and to perform antimicrobial susceptibility or refer for testing. Correlation with Gram smear G132 was also expected.

MAIN EDUCATIONAL POINTS from M132-3

  1. A history of specific exposures may indicate when less common organisms are more likely to be encountered causing infections.
  2. Most laboratories use automated systems which are able to identify Aeromonas readily. The oxidase and the ability to ferment enable the exclusion of Enterobacteriaceae and non-fermentative gram negative bacilli.

Full critique (PDF)

Posted in Clinical Bacteriology Results, critiques