A mother calls the nurse to report that at 0900 she administered an oral dose of digoxin to her 4-month-old infant, but at 0920 the baby vomited the medicine. Which instruction should the nurse provide to this mother?

A. Never automatically repeat digoxin if vomiting occurs. Infants are at high risk for digoxin toxicity. A repeat dose could result in overdose. B. Administer a half dose now: A full dose is generally required, not a half dose, in this situation. C. The dose should not be repeated. The nurse should instruct the mother to withhold the dose and monitor the infant for further vomiting, poor feeding, or bradycardia—all signs of possible digoxin toxicity. The provider should be notified for further guidance. D. Mix the next dose with food: Digoxin should be given as prescribed, and mixing it with food is not a recommended practice.