The nurse is working with a client who is taking nadolol for angina. What action should the nurse perform to best address the likely adverse effects?

A. Ensure that the client sips water throughout the day to relieve dry mouth: Dry mouth is not a common adverse effect of nadolol. While hydration is important, this action does not address the most likely adverse effects of nadolol, which include fatigue and exertion issues. B. Spread out the client's activities to prevent fatigue or overexertion: Beta-blockers like nadolol cause fatigue and reduced exercise tolerance by slowing the heart rate. Spreading out activities and encouraging rest can help prevent overexertion and reduce the risk of fatigue or dizziness. C. Administer stool softeners to the client as prescribed: While constipation can be a side effect of some medications, nadolol is not typically associated with significant gastrointestinal issues like constipation. D. Have the client void on a scheduled basis at the beginning of therapy: While some medications may affect urinary function, this is not a common concern with nadolol, and scheduled voiding is not indicated for this drug.