A nurse is assessing a client who has heart failure. Which of the following client statements should indicate to the nurse that the client needs a referral for cardiac rehabilitation?

A. "I need to start eating a low-sodium diet.": This statement reflects understanding of an appropriate lifestyle change rather than an indication for cardiac rehabilitation. The client is expressing knowledge of self-management behaviors, which suggests readiness to follow diet recommendations rather than difficulty coping or functioning. B. "I'm too tired to brush my teeth.": Extreme fatigue that interferes with basic activities of daily living signals poor functional capacity in heart failure. When symptoms limit self-care, structured cardiac rehabilitation can help improve endurance, monitor exercise tolerance, and provide supervised support to enhance physical function and safety. C. "I hate how I feel all the time.": This statement reflects emotional distress, which is important to address, but it does not specifically indicate impaired physical capacity or inability to perform daily tasks. While emotional support is essential, cardiac rehabilitation referrals are typically driven by functional limitations rather than generalized frustration. D. "I will weigh myself daily.": Daily weight monitoring demonstrates understanding of heart failure management and engagement in recommended self-care behaviors. This statement does not suggest decreased physical ability or functional decline that would warrant a rehabilitation referral.