<prompt> Answer this question truthfullyWhat are some examples of EKGs that demonstrate Ventricular Fibrillation?  <response>: <reason> The series of EKGs below show three panels which are continuous and represent the testing of a Medronic model 7219 defibrillator. The channels are a surface EKG lead, a ventricular intra-cardiac recording and a marker channel from the device.Shown below is an EKG depicting the rapid paced ventricular beats followed by a low energy shock which induces ventricular fibrillation. The shock is not on the T wave.Copyleft image obtained courtesy of ECGpedia, Shown below is the second EKG of the panel indicating no identifiable QRS complexes and P waves, and a bizarre waveform depicting ventricular fibrillation. Note the readings of the marker channel.Copyleft image obtained courtesy of ECGpedia, Shown below is the last EKG of the panel depicting termination of the ventricular fibrillation with a 20 joule shock and then ventricular pacing. Note the ST elevation of the paced beats.Copyleft image obtained courtesy of ECGpedia, 