Cardiology technology involves the non-invasive testing and monitoring of the functioning of the human heart under various conditions, the provision of basic patient care during these procedures, and the assessment and programming of implantable cardiac devices. Cardiology technologists record electrocardiograms; operate stress testing equipment; and monitor and program cardiac pacemakers, implantable defibrillators, resynchronizers,implantable loop recorders and similar devices. They provide test results and initial interpretations to a physician for use in the prevention, diagnosis and treatment of cardiac disease.