A 55-year-old nurse had been suffering from intermittent episodes of red, hot, and swollen knees for the last ten years. She had been diagnosed with monoarticular arthritis and was on NSAIDs and intermittent steroid injections. The patient had to later undergo knee replacement surgery. However, several months after the surgery, symptoms reappeared and she was admitted for a post-operative knee infection. Medical history Hypertension Non-insulin-dependent diabetes Multiple knee surgeries Beta-thalassemia Recent dental cleaning for which she had been given ampicillin Physical examination Temperature: Afebrile Knee: Swollen, decreased motion Incision: Healed Laboratory examinations CBC: Normal ESR: 60 mm/hr CRP: 41 mg/dL Synovial fluid 1.
WBC: 1919/µL 2. Protein: 4.9 g/dL 3. Glucose: 77 mg/dL 4. Gram Staining: Negative 5. Bacterial Culture: Negative Chest X-ray showed mild inferolateral…