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Clinical Question: Are ESR and CRP useful tests when evaluating an adult patient with potential septic arthritis?

In Clinical Questions, Medical Concepts by Aaron Sobkowicz1 Comment

Monoarthropathies are common and carry a broad differential including infection, trauma, lupus, rheumatoid arthritis, or crystal arthropathies.1–3 Of these, the can’t miss diagnosis is septic arthritis, as delayed treatment can cause irreversible joint destruction with a fatality rate up to 11% if not treated.4  Yikes. The Patient You are working in minor treatment and a 70-year-old gentleman presents with pain in his left knee that has been worsening over the past week.  It …