Rheumatoid Arthritis Quiz: What Factors Increase Risk of Developing RA?

January 29, 2021
Fotios Koumpouras, MD
Fotios Koumpouras, MD

Assistant Professor of Medicine

This week's rheumatoid arthritis quiz was developed by Fotios Koumpouras, MD, Director of Education and Training and Director of the Yale Lupus Program at Yale School of Medicine.

How often is rheumatoid arthritis (RA) seronegative?

A. ~10%

B. ~50%

C. ~1%

D. ~30%