A patient with anemia undergoes a bone marrow biopsy, which reveals erythroid hyperplasia. What does this finding indicate?

A Inadequate erythropoiesis
B Effective erythropoiesis with increased demand
C Ineffective erythropoiesis
D Normal erythropoietic activity
Erythroid hyperplasia in the bone marrow indicates an increased demand for red blood cells, suggesting that the bone marrow is responding appropriately to anemia by producing more erythrocytes.
Wintrobe's Clinical Hematology
Hematology Hematology: Anemia Hematology: Anemia Medium MEDICAL Confidence: high