Lab case 417

32 year old man presented with right knee pain and swelling. He also complained of UTI that didn’t respond to Cephalexin and Augmentin. His Synovial fluid analysis revealed the following:

Volume 15 ml

Colour: Transparent yellow

Cell count: 18700

Polymorphs: 78%

Mononuclears: 22%

Crystals: Non

Gram stain: No bacteria seen



Explain these findings?