What laboratory findings typically suggest anemia of chronic disease in a patient with systemic lupus erythematosus?

• A. Normal iron levels with low TIBC
• B. High serum iron with low ferritin
• C. Low reticulocyte count with normal serum iron
• D. Normal ferritin with high serum iron

Answer: (A)

Anemia of chronic disease, which can occur in patients with conditions such as systemic lupus erythematosus, is characterized by specific laboratory findings. One of the hallmark findings is normal iron levels accompanied by low total iron-binding capacity (TIBC).

In chronic inflammatory states, such as infections or autoimmune diseases, the body tends to withhold iron from circulation, which is mediated by hepcidin production. As a result, despite having adequate iron stores, the availability of iron for erythropoiesis is diminished. This leads to normal serum iron levels, as there is still some iron present, but the reduced TIBC indicates a lower capacity of the blood to bind and transport iron.

Additionally, in anemia of chronic disease, the ferritin level is usually normal or even elevated due to increased iron stores in macrophages as part of the inflammatory response. However, while you may have iron present in the body, its utilization for red blood cell production is impaired, contributing to the resultant anemia.

This combination of findings—normal iron levels with low TIBC—clearly aligns with the pathology of anemia in the context of chronic disease and highlights the body's regulatory mechanisms in response to inflammation.