A nurse is caring for an adolescent who has a new diagnosis of type 1 diabetes mellitus. Which of the following recommendations should the nurse make?

Effective management of adolescent endocrine disorders involves a multidisciplinary approach focusing on metabolic stability. Knowledge of insulin pharmacokinetics, nutritional science, and self-monitoring techniques must be applied to promote glycemic control, prevent long-term complications, and support developmental transitions. Choice A rationale Opened insulin vials typically remain stable and potent at room temperature for only 28 to 30 days. Storing medication for 60 days risks degradation, leading to unpredictable glycemic levels and potential ketoacidosis due to loss of efficacy. Choice B rationale While exercise is vital, physical therapy is not a standard requirement for a new diabetes diagnosis unless specific physical impairments exist. Adolescents instead require education on balancing physical activity with carbohydrate intake to prevent exercise-induced hypoglycemia. Choice C rationale Nutritionists provide essential medical nutrition therapy to balance carbohydrate intake with insulin dosing. This specialized guidance helps the adolescent manage blood glucose levels (70 to 110 mg/dL) while ensuring adequate caloric intake for growth and pubertal development. Choice D rationale Daily monitoring is insufficient for a new type 1 diabetes diagnosis. Capillary blood glucose must be checked multiple times daily, including before meals and at bedtime, to accurately adjust insulin doses and identify fluctuating glycemic patterns.