A nurse is preparing to administer digoxin to a pediatric client who has heart failure. Which of the following actions is appropriate?

A. Clients on digoxin should actually have an adequate intake of potassium, as low potassium levels can increase the risk of digoxin toxicity. B. If a pediatric client spits out digoxin, the dose should not be repeated automatically; instead, the nurse should assess the situation and follow the facility's protocol regarding missed doses. C. Measuring the apical pulse for one full minute before administering digoxin is critical; if the pulse is below the established threshold (usually <60 bpm for children), the medication should be held and the provider notified. D. While evaluating for nausea, vomiting, and anorexia is important, it is not an appropriate immediate action before administering the medication. The priority action is to assess the apical pulse.