A 4-year-old child diagnosed with iron deficiency anemia is prescribed oral ferrous sulfate. The child's parents report difficulty administering the medication due to gastrointestinal side effects and poor adherence. Which nursing action is most appropriate to enhance the effectiveness of treatment and minimize complications?

A. Instruct the parents to administer the iron supplement with vitamin C-rich juice and on an empty stomach to improve absorption, while monitoring for side effects is correct because vitamin C enhances the absorption of non-heme iron, and taking iron on an empty stomach increases bioavailability. While gastrointestinal side effects such as constipation, nausea, and abdominal discomfort may occur, they can be managed through dosing adjustments, timing, and dietary measures rather than discontinuing therapy. Monitoring for side effects ensures safety and adherence. B. Advise the parents to give the iron supplement with milk to reduce gastrointestinal upset and enhance tolerance is incorrect because milk and dairy products contain calcium, which inhibits iron absorption. Administering iron with milk can significantly reduce the effectiveness of treatment and delay correction of anemia. C. Recommend switching to intravenous iron therapy immediately to avoid gastrointestinal side effects and ensure compliance is incorrect because oral iron is first-line therapy for children with iron deficiency anemia. IV iron is reserved for cases where oral iron is ineffective, not tolerated, or in malabsorption disorders, due to the risk of serious side effects and cost. D. Suggest stopping the iron supplement temporarily until the child's hemoglobin normalizes, then restart to avoid side effects is incorrect because interrupting therapy prevents replenishment of iron stores and prolongs anemia. Consistent administration with proper strategies to manage side effects is safer and more effective.