A nurse is providing discharge teaching for a client who has heart failure and is to start therapy with digoxin. Which of the following statements by the client indicates an understanding of the teaching?

C. Metabolic alkalosis is characterized by an increase in serum bicarbonate levels, resulting in an imbalance in the body's acid-base equilibrium towards alkalinity. Excessive ingestion of antacids, particularly those containing bicarbonate or calcium carbonate, can lead to an excessive accumulation of bicarbonate ions in the body, causing metabolic alkalosis.
A. Excessive ingestion of antacids would not typically cause metabolic acidosis because antacids containing bicarbonate or calcium carbonate actually increase bicarbonate levels, leading to alkalosis rather than acidosis.
B. Respiratory alkalosis occurs due to hyperventilation, leading to a decrease in carbon dioxide levels and subsequent alkalosis. Excessive ingestion of antacids is not typically associated with respiratory alkalosis.

D. Respiratory acidosis occurs due to hypoventilation, leading to an increase in carbon dioxide levels and subsequent acidosis. Excessive ingestion of antacids is not typically associated with respiratory acidosis.

B. Muscle weakness can be a sign of digoxin toxicity, and it is essential for the client to notify their healthcare provider if they experience this symptom. Muscle weakness is a potential adverse effect of digoxin, especially if the medication level in the blood becomes too high.
A. While constipation is a potential side effect of digoxin, taking it with fiber is not a recommended method for preventing constipation.
C. Blurred vision can be a sign of digoxin toxicity, and the client should not increase their dose if they experience this symptom. Instead, they should promptly notify their healthcare provider to assess for toxicity and adjust the medication regimen as needed.

D. Digoxin is a medication that can slow the heart rate, and a pulse rate less than 60 beats per minute is considered bradycardia. If the client's pulse is less than 60 beats per minute, they should hold the digoxin and promptly notify their healthcare provider.