Electrophysiological diagnostic technologists take recordings of patient cardiac and cerebral activity with electronic devices. They prepare and accompany patients during tests and process images to allow doctors to determine their diagnosis: diseases, lesions and anomalies. They assist doctors with adjustments to pacemakers or defibrillators. As part of their duties, they may perform routine maintenance on diagnostic equipment. This is a stimulating job that takes place in quiet environments. It requires an aptitude for science and a good ability to analyze and synthesize. A career as an electrophysiological diagnostic technologist is suitable for responsible and organized individuals who enjoy working with the public.