A 66-year-old woman presents to the clinic for a diabetes screening test. She has been feeling a little fatigued,

A 66-year-old woman presents to the clinic for a diabetes screening test. She has been feeling a little fatigued, but otherwise well. She reports no other symptoms. Her past medical history is negative for diabetes mellitus, gestational diabetes, cardiovascular disease, hypertension, polycystic ovarian syndrome, or other endocrinopathies. Her family history is negative for diabetes. The patient has chronic liver disease due to past alcohol use disorder, but she quit drinking about five years ago. She tries to exercise daily, eat healthily, and have an active life. She reports no use of tobacco products or recreational drugs. Her BMI is 25.2 kg/m2. Vital signs include BP 128/80 mm Hg and HR 70 bpm. The patient had some blood tests done one week ago at a different clinic, and her hemoglobin A1C was 6.3%. What is the best next step in the management of this patient? Diagnose the patient with prediabetes and counsel her on appropriate lifestyle changes Measure the patient’s C-peptide levels Perform a fasting plasma glucose test on the patient Repeat the hemoglobin A1C measurement