Source:http://linkedlifedata.com/resource/umls/id/C0151318
AIR: WHAT: Bacterial infection, proven, recent or current This questions aims at a recent non-synovial bacterial infection, demonstrated by gram stain, culture or the clinical course, e.g., a clear response to antibiotic treatment. WHY: A current or recent bacterial infection is the most important cause of bacterial arthritis. The infection usually reaches the joint via the blood. Even after apparently successful antibiotic treatment, bacterial arthritis may occur. HOW: Assessed by history.