A nurse provided education to a client who was prescribed sitagliptin. Which client statement indicates an understanding of the education?

A. "I can stop monitoring my blood glucose levels.": Sitagliptin helps lower blood glucose but does not replace the need for regular monitoring. Clients must continue self-monitoring to ensure safe and effective glycemic control and detect hyperglycemia or hypoglycemia. B. "I should avoid carbohydrates while taking sitagliptin.": While a balanced diet is important, clients do not need to completely avoid carbohydrates. Sitagliptin enhances incretin effects to regulate insulin and glucagon but does not eliminate the need for dietary carbohydrates or proper nutrition. C. "I know headaches are a common side effect.": Headache is a documented and relatively common adverse effect of sitagliptin. This statement reflects an understanding of the medication’s potential side effects, allowing the client to anticipate and manage minor discomfort appropriately. D. "I will inject this medication daily at the same time.": Sitagliptin is an oral dipeptidyl peptidase-4 (DPP-4) inhibitor, not an injectable medication. Planning to inject it reflects a misunderstanding of its route of administration and pharmacologic form.