A nurse is reinforcing teaching with a client who is receiving chemotherapy to treat lung cancer and has neutropenia. Which of the following instructions should the nurse include?

A. "Check your rectal temperature daily.": Rectal temperature measurement is contraindicated in neutropenic clients because it can cause mucosal injury and introduce infection. Oral or tympanic thermometers are safer for monitoring. B. "Use an alcohol-based mouthwash.": Alcohol-based mouthwashes can irritate oral mucosa and worsen mucositis, which is common in chemotherapy clients. Nonalcoholic mouth rinses or saline solutions are preferred for oral hygiene. C. "Report any persistent cough.": A persistent cough may indicate infection, which is a serious concern in neutropenic clients due to their impaired immune response. Prompt reporting allows early assessment and treatment to prevent complications. D. "Increase your intake of raw vegetables.": Raw vegetables may harbor bacteria or fungi that could cause infection in neutropenic clients. Cooked or thoroughly washed foods are safer to minimize infection risk.