M143-2

Midstream urine: Candida krusei  – Shipped November 2014

HISTORY

The challenge was sent to category A, B, and C laboratories. The sample was a simulated mid-stream urine obtained from an 38-year-old female patient with recurrent urinary tract infections (UTI).

Participants were expected to isolate, report colony count, and identify Candida krusei. No susceptibility testing was required.

MAIN EDUCATIONAL POINTS from M143-2

  1. Recurrent yeast infections can be caused by pathogens resistant to commonly used therapy, in this example, fluconazole.
  2. Identification of yeast isolates to the species level in the setting of recurrent infection is important in identifying cases in which treatment with fluconazole would be expected to be ineffective.

Full critique (PDF)

Posted in Clinical Bacteriology Results, critiques