Reactive arthritis Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

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A 27-year-old woman presents to the clinic with a two-week history of asymmetric joint pain, particularly in her right knee and left ankle and foot. She had a recent episode of diarrhea, vomiting, and abdominal pain, which resolved on its own. She has no significant past medical history or family history of autoimmune disorders. Temperature is 37.0°C (98.6°F), pulse is 78/min, respiratory rate is 16/min and blood pressure is 118/72 mmHg. On examination, the right knee is swollen and warm. Laboratory tests are listed below. STI screening is negative. Which of the following is the most appropriate next step for managing this patient’s condition?

 Laboratory study  Result  Reference range
 ESR  72 mm/hr  0-20 mm/hr 
 CRP  3.97 mg/dL  <0.3 mg/dL 
 ANA  Negative  Negative 
 Rheumatoid factor  Negative  Negative 
 HLA-B27  Positive  Negative 
 Synovial WBC count  10,000 cells/microL  <200 cells/microL 
 Synovial Gram stain and culture  Negative  Negative

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