Clinical Scenario:
A 10-year-old boy with stage 4 chronic kidney disease presents with increasing fatigue, poor exercise tolerance, and reduced school performance. On examination, he is pale, with a blood pressure of 130/85 mmHg. Laboratory investigations reveal:
- Hemoglobin: 7.8 g/dL
- MCV: 88 fL
- Serum ferritin: 180 ng/mL
- Transferrin saturation: 28%
There is no evidence of active bleeding or hemolysis.
What is the most appropriate treatment for his anemia?
A. Blood transfusion
B. Erythropoietin
C. Folic acid
D. Oral iron
E. Vitamin B12
Correct answer & Explanation:
Correct Answer: B. Erythropoietin
Explanation
Anemia in chronic kidney disease is primarily due to decreased renal production of erythropoietin. This child has normocytic normochromic anemia with adequate iron stores (normal ferritin and transferrin saturation), making erythropoiesis-stimulating agents (ESAs), such as erythropoietin, the treatment of choice.
Learning Point
Before initiating erythropoietin therapy in children with CKD, iron deficiency should be excluded or corrected, as adequate iron stores are necessary for an optimal response to treatment. Blood transfusions should be reserved for severe symptomatic anemia or emergency situations.
