M114-3

Vaginal swab:  Group B streptococcus – Shipped February 2012

HISTORY

A simulated vaginal swab sample collected from a 25 year old pregnant woman who was reported to be allergic to penicillin was sent to category A and B laboratories for Group B Streptococcus screening.

Participants were expected to isolate and report Group B Streptococcus and were asked to report susceptibility to clindamycin and comment on any other antimicrobial agent they would normally report.

MAIN EDUCATIONAL POINTS from M114-3

  1. It is important to test for group B streptococci in pregnancy, usually at 35-36 weeks gestation, but even intrapartum if pre-natal care has not been adequate.
  2. Antibiotic choices are penicillin, clindamycin and vancomycin.

Full critique (PDF)

Posted in Clinical Bacteriology Results, critiques