Final answer:
The nurse should explain to the client that he needs to lower his cholesterol level. Elevated cholesterol levels are associated with an increased risk of heart disease, so it is important to take steps to lower cholesterol levels through dietary modifications and increased physical activity.
Step-by-step explanation:
The nurse should explain to the client that he needs to lower his cholesterol level. According to the information provided, a cholesterol level of 240 mg/dL is considered high. Elevated cholesterol levels are associated with an increased risk of heart disease, so it is important to take steps to lower cholesterol levels through dietary modifications and increased physical activity. The nurse can discuss dietary changes that could help reduce cholesterol levels and improve the client's overall health.