[Answered]: A 39-year-old woman presents to your office with…

A 39-year-old woman presents to your office with pain and swelling in her hands and feet. She has not been feeling well for the past fow months and has been experiencing morning stiffness in her hands. Laboratory testing reveals an elevated erythrocyte sedimentation rate and a positive anti-cyclic citrullinated peptide antibody result. Which of the following is the most likely diagnosis? Fibromyalgia Polymyalgia rheumatica Reactive arthritis Rheumatoid arthritis