The nurse prepares to teach a client with leukemia about newly prescribed rasburicase. Which statement by the client indicates understanding?

Rationale: A. "This new medication will increase my white blood cells after chemotherapy" is incorrect. Rasburicase does not affect white blood cell counts. Its purpose is not to stimulate the immune system or replace chemotherapy-induced leukopenia. White blood cell recovery is managed through other medications, such as colony-stimulating factors. B. "I should use this medication during chemotherapy if I develop mouth ulcers" is incorrect. Rasburicase is not indicated for oral mucositis or mouth ulcers. Mouth ulcers are a common side effect of chemotherapy but are managed with topical treatments, oral care, and pain management, not rasburicase. C. "This medication will prevent me from becoming constipated when my calcium level rises after chemotherapy" is incorrect. Rasburicase has no effect on constipation or calcium levels. Constipation is managed through diet, hydration, and stool softeners, while calcium imbalances require separate interventions. D. "Rasburicase will prevent high uric acid levels in my blood during and after chemotherapy" is correct. Rasburicase is an enzyme that breaks down uric acid and is used to prevent and treat hyperuricemia, which can occur during tumor lysis syndrome after chemotherapy. This statement demonstrates an accurate understanding of the medication’s purpose and appropriate use.