A 59-year-old woman comes to the physician for a 3-month history of pain the buttocks with exertion. Vitals are normal. She has a 15-year history of type II diabetes mellitus. She has been smoking one pack of cigarettes daily for 30 years. Which of the following is the most appropriate next best step in management?
Angiography
Ankle-brachial indices
Cilostazol
Exercise-echo stress test
Ultrasonography
