GS194-2

Gram – Joint fluid: 3+ (6-10/oif) neutrophils, no organisms/bacterium present/seen, 1+ (0-2/oif) uric acid crystals – Shipped on February 10, 2020 FINAL RESULTS

HISTORY

A simulated Joint Fluid sample smear collected from a 78 year old male with gout was sent to category A, C, and C1 laboratories.
Participants were expected to report the presence of neutrophils and/or uric acid crystals.

MAIN EDUCATIONAL POINTS from GS194-2

  1. A Gram stain is a poor predictor of culture results in acute infectious arthritis.
  2. A Gram stain is a poor detector of uric acid crystals often seen in patients with acute gouty arthritis.

 

Full critique (PDF)

Posted in CBNews, Clinical Bacteriology Results, critiques, Gram