A nurse is performing an admission assessment for a client with a history of Type 2 Diabetes Mellitus and heart disease. The client is currently prescribed Metoprolol 50 mg twice daily, Simvastatin 40 mg daily, Baby aspirin 81 mg daily, Glyburide 5 mg daily, Apixaban 2.5 mg daily, and Sertraline 50 mg daily. Which diagnostic test is the priority for the nurse to review based on the client's medication Glyburide?