A nurse is performing discharge teaching with a client who has leukemia. Which of the following client statements indicates an understanding of the teaching?

A. "I can change my cat's litter box every day.": Clients with leukemia are immunocompromised and at increased risk for infections such as toxoplasmosis from cat feces. They should avoid changing litter boxes or use protective measures like gloves and masks, so this statement indicates a misunderstanding of infection prevention. B. "I will avoid blowing my nose when I feel congested.": Avoiding forceful nose blowing helps prevent mucosal trauma and bleeding, which is important for clients with leukemia who may have thrombocytopenia or fragile mucous membranes. This statement demonstrates an understanding of precautions to reduce injury and infection risk. C. "I can continue gardening in my yard.": Gardening exposes the client to soilborne pathogens and bacteria, increasing the risk of infection. Clients with leukemia should avoid activities that involve soil contact unless using strict protective measures, so this statement indicates a lack of understanding. D. "I will clean my toothbrush with an alcohol-based mouthwash.": Cleaning a toothbrush with mouthwash is not sufficient to prevent microbial contamination. Clients with leukemia should use a soft-bristled toothbrush and replace it regularly to minimize infection risk. This statement reflects incomplete understanding of oral care precautions.