c. Changes in diet and exercise may control blood glucose levels in type 2 diabetes.
The correct statement by a nurse to a patient newly diagnosed with type 2 diabetes is “Changes in diet and exercise may control blood glucose levels in type 2 diabetes.”
This statement is accurate because:

1. Diet and exercise are crucial components in the management of type 2 diabetes. Making lifestyle changes, such as adopting a healthy diet and increasing physical activity, can help control blood glucose levels in individuals with type 2 diabetes.
2. In many cases, particularly in the early stages of type 2 diabetes, lifestyle modifications like diet and exercise may be sufficient to control blood glucose levels without the need for medication or insulin.
3. Lifestyle interventions can improve insulin sensitivity and help the body better utilize insulin, which is crucial in managing type 2 diabetes, a condition characterized by insulin resistance.