Arrhythmia monitor.
D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D003201:Computers; D003203:Computers, Hybrid; D003626:Data Display; D004562:Electrocardiography / Q000295:instrumentation*; D006339:Heart Rate; D006352:Heart Ventricles; D006801:Humans; D008991:Monitoring, Physiologic / Q000295:instrumentation*