Final answer:
To assess the effectiveness of filgrastim (Neupogen) for a patient with acute lymphocytic leukemia on chemotherapy, the nurse would use the absolute neutrophil count (ANC).
Step-by-step explanation:
To determine if filgrastim (Neupogen) is effective for a patient with acute lymphocytic leukemia (ALL) who is receiving chemotherapy, the nurse would use the absolute neutrophil count (ANC). Filgrastim is a granulocyte colony-stimulating factor which works by stimulating the production of neutrophils, a type of white blood cell important for fighting off infections. Since chemotherapy can result in a reduction of leukocytes, including neutrophils, assessing the absolute neutrophil count helps to ensure that a patient's neutrophil levels remain adequate during treatment. Therefore, the correct answer is (d) Absolute neutrophil count.