ecg of 1st degree av block, 3d

3d rhythm function block electrocardiograph arrhythmia 1st degree av abnormalities atrialventricular atrioventricular condition cardiac conduction disorder disturbance ecg wave interpretation monitoring nodal plain background rate tracing ekg electrocardiogram heart art illustration concept education diagnosis disease cardiovascular graphics medical visuals cardiology healthcare system treatment health information heartbeat text poster annotated