A patient with rheumatoid arthritis has a mild normocytic anemia, a normal to increased ferritin, and a decreased total iron binding capacity. Which condition is most likely?
1Iron deficiency anemia
2Anemia of chronic disease✓ 정답
3Sideroblastic anemia
4Thalassemia minor
해설
In chronic inflammation iron is sequestered in stores, so serum iron is low while ferritin, an acute phase reactant, is normal or increased and total iron-binding capacity is decreased. This is the pattern that distinguishes anemia of chronic disease from iron deficiency, which shows the opposite.