A patient presents with joint pains. How should we approach the history, physical examination, laboratory tests, and imaging studies to arrive at a correct diagnosis? The discussion points out how to correctly diagnose rheumatoid arthritis, psoriatic arthritis, lupus, and fibromyalgia as well as how to distinguish each from the other conditions.

Learning Objectives:

  • Identify clinical features that distinguish psoriatic arthritis from rheumatoid arthritis
  • Interpret of rheumatoid factor, anti-CCP, and ANA tests
  • Recognize the distinctive features that point to systemic lupus erythematosus
  • Identify fibromyalgia