This is the premiere of the first contribution to the EM Basic Project. Dr. Brian Cohn from Washington University in Saint Louis, Missouri is on the podcast today talking about mono-articular arthritis. He reviews the common physical exam findings, the appropriate lab work and medications, how to avoid common pitfalls in this diagnosis, some evidence based medicine pearls and even some relevant medical trivia. Dr. Cohn is one of the authors of the EMJ club podcast which reviews common EM topics in a journal club style format.