Final answer:
To encourage blood cell production in chemotherapy patients, medications like erythropoietin and colony-stimulating factors are used to stimulate the bone marrow.
Step-by-step explanation:
To stimulate hemopoiesis, or blood cell production, in a cancer patient undergoing chemotherapy, medical professionals might use medications known as hematopoietic growth factors. These substances, such as erythropoietin (EPO) and colony-stimulating factors (CSFs), specifically granulocyte-CSF (G-CSF) and granulocyte-macrophage-CSF (GM-CSF), act to encourage the bone marrow to produce more blood cells, which can help alleviate the myelosuppressive effects of chemotherapy.