A 72-year-old man has an overdose of digoxin. Which of the following is the patient least likely to experience?

A 72-year-old man has an overdose of digoxin. Which of the following is the patient least likely to experience?

• A. Nausea
• B. Constipation
• C. Visual disturbances
• D. Confusion

Answer: (B)

Digoxin toxicity typically shows up as gastrointestinal upset (nausea, vomiting, anorexia), neurological changes (confusion or delirium), and visual disturbances (color vision changes or halos). Constipation isn’t a feature of digoxin overdose, so it’s not something you’d expect to see with toxicity. The other signs—nausea, visual disturbances, and confusion—fit the known toxicity pattern, making constipation the least likely finding.

Digoxin toxicity typically shows up as gastrointestinal upset (nausea, vomiting, anorexia), neurological changes (confusion or delirium), and visual disturbances (color vision changes or halos). Constipation isn’t a feature of digoxin overdose, so it’s not something you’d expect to see with toxicity. The other signs—nausea, visual disturbances, and confusion—fit the known toxicity pattern, making constipation the least likely finding.