A nurse is caring for a client who has an infection. The nurse should use which of the following strategies to prevent the transmission of the client's infection?

Choice A reason: Encouraging the client to consume a high-protein diet can help boost their immune system, but it does not directly prevent the transmission of infection. This strategy focuses on the client's health rather than infection control practices. Choice B reason: Changing the client's bed linens each day can help maintain cleanliness but is not the most critical intervention to prevent infection transmission. The primary focus should be on practices that directly reduce the spread of pathogens. Choice C reason: Placing the client in a room with positive-pressure airflow is typically used for immunocompromised patients to protect them from external pathogens. It is not used to prevent the transmission of infections from the client to others. Choice D reason: Performing hand hygiene before, during, and after direct contact with the client is the most effective strategy to prevent the transmission of infection. Proper hand hygiene is crucial in breaking the chain of infection and protecting both the client and healthcare workers from the spread of pathogens.