Final answer:
Aplastic anemia is characterized by a decreased reticulocyte count and increased erythropoietin. The main feature of aplastic anemia is decreased red blood cell count.
Step-by-step explanation:
Aplastic anemia is characterized by a decreased reticulocyte count and increased erythropoietin. The main feature of aplastic anemia is decreased red blood cell count. This condition occurs when there are deficient numbers of RBC stem cells. Aplastic anemia can be inherited or triggered by factors like radiation, medication, chemotherapy, or infection.