What is the primary cause of anemia in patients with rheumatoid arthritis?

A Chronic inflammation ✓
B Autoimmune hemolysis
C Iron deficiency
D Vitamin B12 deficiency

Explanation

Chronic inflammation in rheumatoid arthritis leads to increased production of hepcidin, which reduces iron availability and causes anemia.

Source

Harrison's Principles of Internal Medicine
Hematology Hematology: Anemia Hematology: Anemia Medium MEDICAL Confidence: high