Problem: After 6 months of treatment with diet and exercise, an adolescent with type 2 diabetes still has a fasting blood glucose level of 140 mg/dL (7.8 mmol/L). The health care provider (HCP) has decided to begin metformin. The client asks how the medication works. The nurse should tell the client that the medicine decreases the glucose production and performs which other function? increases insulin sensitivity decreases carbohydrate adsorption replaces natural insulin helps the body make more insulin. Need Assignment Help?