Why is erythropoietin given in chronic kidney disease?

• A. To prevent infection
• B. To treat hyperkalemia
• C. To promote wound healing
• D. To treat anemia from reduced erythropoietin production

Answer: (D)

Anemia in chronic kidney disease mainly happens because the kidneys can’t produce enough erythropoietin, the hormone that signals the bone marrow to make red blood cells. Giving erythropoietin replaces the missing signal, stimulating red blood cell production and improving oxygen delivery, which helps reduce fatigue and other anemia-related symptoms. This treatment directly targets the cause—reduced erythropoietin production—not infections, potassium levels, or wound healing, which are managed by other therapies. For best results, ensure adequate iron stores (iron supplements if needed) since iron is required for red blood cell production, and monitor hemoglobin to avoid raising it too high.