Gram – Joint Fluid: 4+ (>10/oif) neutrophils; 4+ (>50/oif) gram positive cocci (Streptococcus pyogenes) – Shipped 15 February 2016
A simulated joint fluid smear collected from a 9 years old patient with a sore shoulder was sent to category A, B, C, and C1 laboratories.
Participants were expected to report the presence of neutrophils and gram positive cocci.
MAIN EDUCATIONAL POINTS from GS154-1
- Laboratories should be able to recognize the presence of leucocytes and gram positive cocci in pairs and short chains in joint fluids.
- Preliminary reporting of the organism’s genus when confident with typical morphology should be included in the reports however, laboratories are cautioned not to over call, if the morphology is not typical.