M204-1

Urine: mixed flora – Shipped February 08, 2021

HISTORY

A simulated MSU collected from 83 year old living in long-term nursing home was sent to category A laboratories. Participants were expected to report the sample as mixed flora and not to process any further.

MAIN EDUCATIONAL POINTS from M204-1

  1. Mixed cultures should be reported without quantification or identification (of individual isolates). Collection of a fresh specimen should be recommended.
  2. Clean catch or MSU can be difficult to obtain in poorly cooperative LTC patients. Straight catheterization may be needed to obtain a satisfactory sample.
  3. Urine samples should be refrigerated prior to and during transport to the microbiology lab to prevent overgrowth of contaminating organisms.

Full critique (PDF)

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