A nurse is providing teaching about digoxin administration to the parents of a toddler who has heart failure. Which of the following statements should the nurse include in the teaching?

A. "Limit your child's potassium intake while she is taking this medication.": This statement is incorrect. In fact, potassium intake should generally be adequate because digoxin can lead to increased potassium loss, and low potassium levels can increase the risk of digoxin toxicity. B. “Repeat the dose if your child vomits within 1 hour after taking the medication.": This statement is not recommended. The nurse should advise parents to contact their healthcare provider for guidance on whether to administer a repeat dose after vomiting, as it depends on the individual situation and timing. C. "Have your child drink a small glass of water after swallowing the medication.": This statement is appropriate as it can help ensure that the medication is swallowed properly and aids in its absorption. Adequate hydration is important for all medications. D. "You can add the medication to a half-cup of your child's favorite juice.": This is not advisable because mixing digoxin with juice can alter the absorption of the medication. It's generally better to administer it alone to ensure proper dosing and effectiveness.