Rheumatoid arthritis

Maggie is a 78-year-old female in good health who is active, hikes, and plays tennis. Her only diagnosis is rheumatoid arthritis, which has been in good control on Humira. She comes to the clinic complaining of swelling and pain around her right elbow (her tennis serve arm). You are aware that certain disease conditions can increase the risk for developing bursitis. Identify four of them.