A vascular technologist performs imaging and diagnostic exams, such as x-rays and ultrasounds, to assess vascular health. According to the Bureau of Labor Statistics, vascular technologists focus exams on the cardiovascular system and may check blood flow, lung capacity, or blood pressure. Vascular technologists often work in a hospital, clinic, or medical institute. They train in vascular health and education, explaining the diagnostic process to patients, operating diagnostic equipment, and performing the diagnostic exam that a physician uses to take next steps in medical care.