The patient is admitted for chemotherapy, but the nurse notices laboratory values indicating that the patient is immunosuppressed. The nurse should

Rationale: A. This is incorrect because hand hygiene is the most critical intervention to prevent infection in immunosuppressed patients. Staff should strictly wash hands before and after all patient contact. Omitting hand washing would increase the risk of life-threatening infections. B. This is incorrect because antimicrobial soaps are safe and often recommended for bathing immunosuppressed patients to reduce the risk of infection. Avoiding them could increase susceptibility to pathogens. C. This is incorrect because placing multiple intravenous lines unnecessarily increases the risk of infection and does not prevent immunosuppression-related complications. IV lines should only be used as clinically indicated. D. This is correct because placing the patient in a single room with HEPA filtration helps reduce exposure to airborne pathogens, which is essential for severely immunocompromised patients, such as those undergoing chemotherapy. Additional precautions include limiting visitors, using protective equipment, and maintaining strict aseptic technique during procedures.