Percentage of patients, aged 50-years-old or older, who have had a screening ultrasound for an abdominal aortic aneurysm with a positive finding of abdominal aortic aneurysm (AAA), that have recognized clinical follow-up recommendations documented in the final report. Performance Rate Descriptions: Percentage of all Final Reports for abdominal aortic aneurysm (AAA) screening ultrasound with positive finding for an AAA that contain recommendations for the positive finding of an AAA in accordance with Industry accepted guidance (including at least the AAA size and patient risk factors).