What Is the Most Appropriate Nursing Intervention for This Child

a 7-year-old Child Presents with Chronic Diarrhea, Abdominal Distention and Failure to Thrive. the Child’s Parents Report That the Child Has Been Complaining of Abdominal Pain and Has Lost Weight over the Past Few Months. the Child’s Diet Consists Mainly of Bread, Pasta and Other Gluten-containing Foods