Diagnosing PAD in the legs can be done using the "ankle-brachial index," or ABI, in which the blood pressure is measured and compared in the ankle and the arm. . doi: 10. . This is a common test used to diagnose PAD. People who are diagnosed with early-stage PAD often can stop the progression of the disease by switching to a heart-healthy lifestyle, including establishing an exercise routine, losing weight if necessary and quitting smoking. A correct diagnosis is important because people who have PAD are at higher risk for coronary heart disease (CHD), heart attack, stroke,. Describe the management options available for peripheral vascular disease. .