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?

"Repeat the dose if your child vomits within 1 hour after taking the medication."

"Limit your child's potassium intake while she is taking this medication."

"Have your child drink a small glass of water after swallowing the medication."

"You can add the medication to a half-cup of your child's favorite juice."