Below is a normal ECG top tracing and an abnormal ECG bottom

Last updated: 7/10/2023

Below is a normal ECG top tracing and an abnormal ECG bottom tracing of four heart beats Which of the following best describes the abnormal ECG in relation to the normal ECG htt w O the time of passive ventricular filling is longer Othere are ST segment elevations Othere are premature atrial contractions OAV nodal delay is increased