How To Become a Cardiovascular Technologist: Like many allied health careers, becoming a cardiovascular technologist requires an associate's degree and a certification.An associate's degree in cardiovascular technology from an accredited program at a community college, technical school, or vocational school is recommended.ou never know what you're going to get when you go to work each day, he adds. Challenges for Cardiovascular Technologists: Many challenges one may face as a CVT are similar to challenges faced by other medical professionals.