M143-1

Vaginal swab: no group B streptococcus  – Shipped November 2015

HISTORY

A simulated vaginal swab sample collected from a 28 year old, 36 week pregnant woman was sent to category A, B, and C laboratories for group B streptococcus (GBS) screening.

Participants were expected to report the sample negative for GBS.

MAIN EDUCATIONAL POINTS from M143-1

  1. Group B streptococcus screening is important to ensure that prospective mothers are given appropriate prophylaxis in the event of a positive result. It is well documented that such treatment has a very positive effect to prevent unnecessary invasive group B streptococcal infection in the infant.
  2. There are a variety of test modules on the market that are easy to perform, are well controlled and have good sensitivity and specificity.

Full critique (PDF)

Posted in Clinical Bacteriology Results, critiques