indicating the presence of atrial fibrillation. There is quite a slow ventricular response which likely indicates AV nodal disease, perhaps even underlying complete heart block (unknown since the ...

This means an ECG showing atrial fibrillation will have no visible P waves and an irregularly irregular QRS complex. The ventricular rate is frequently fast, unless the patient is on AV nodal ...

The P waves are negative in leads V1-V2, consistent with a left atrial abnormality or left atrial ... Other causes of electrical alternans include rapid supraventricular tachycardia, acute ST ...