A nurse is preparing to administer digoxin to a client who has heart failure. Which of the following actions is appropriate?

A. Instructing the client to eat foods that are low in potassium: Digoxin can cause hypokalemia, which increases the risk of digoxin toxicity. Therefore, clients should be encouraged to consume foods that are rich in potassium, such as bananas and spinach. B. Measuring apical pulse rate for 30 seconds before administration: When administering digoxin, the apical pulse should be measured for a full minute (not 30 seconds). If the pulse is less than 60 bpm, the medication should be withheld and the healthcare provider notified. C. Evaluating the client for nausea, vomiting, and anorexia: Nausea, vomiting, and anorexia are symptoms of digoxin toxicity. Therefore, it is important to assess for these signs, particularly in clients who are at risk for toxicity, such as those with electrolyte imbalances. D. Withholding the medication if the heart rate is above 100/min: Digoxin is typically withheld if the heart rate is below 60 bpm (bradycardia). A heart rate above 100 bpm may indicate a need for further evaluation, but withholding medication is not the typical action.