A nurse is providing discharge teaching to a parent of a child who has juvenile idiopathic arthritis and a new prescription for prednisone. Which of the following statements should the nurse include in the teaching?

A. Some corticosteroids can affect potassium levels, prednisone typically doesn't cause significant potassium loss. Therefore, limiting potassium-rich foods is unnecessary. B. Prednisone suppresses the immune system, increasing the risk of infection. Therefore, it's crucial to monitor for signs of infection, such as fever, sore throat, or unusual discharge. C. While growth spurts are common in childhood, prednisone doesn't directly cause them. D. Gastrointestinal upset can be a side effect of prednisone, but abruptly stopping the medication can be harmful. The parent should contact the healthcare provider if this occurs.