Acquired Chronic Pure Red Cell Aplasia Is a Rare Disorder

Multiple Choice

Acquired chronic pure red cell aplasia is a rare disorder encountered in association with several autoimmune disorders. What does the mechanism appear to be?

A) B cell-mediated immunosuppression of neutrophils
B) T cell-mediated immunosuppression of erythropoiesis
C) Cytokine-mediated immunosuppression of erythropoiesis
D) Increased serum erythropoietin