{"ops":[{"insert":"A 50 year old postmenopausal woman presents with a red, swollen left knee which is painful to touch.\n\nThere was no history of fever, rash, diarrhea, uveitis, prior knee swelling, antecedent trauma, knee surgery, or risky sexual behavior.\n\nShe was diagnosed with rheumatoid arthritis 2 years ago, and is on long-term low dose corticosteroid therapy.\n"},{"insert":"\n"},{"insert":{"image":"\/storage\/case-images\/pd\/PD-M-131_en.png"}},{"insert":"\n"}]}
2
Investigate
Arthrocentesis
{"ops":[{"insert":"WBC 50,000\/mm3 (\u003C200)\nPolymorphs: \u003E50% (\u003C25%)\nGram stain: multiple gram positive cocci noted\nCultures: will be available in 3 days\nCrystals: negative\n"}]}
