An electrocardiogram of an episode of sustained ventricular tachycardia. Ventricular Tachycardia Rate Rhythm Ventricular 100 bpmRegularAtrialNone P-WaveAbsent P-R IntervalAbsent QRS Complex .10 seconds Ventricular fibrillationAll output from the heart stops, blood pressure falls rapidly, and the patient loses consciousness . An electrocardiogram reflecting the irregular, pulseless electrical activity of ventricular fibrillationClassify heart block based on the length the delay . Second-Degree Heart Block: Mobitz I n n n
