<unk>  <unk>  is defined as the presence of spontaneous organized cardiac electric<unk>  in the absence of blood flow sufficient to maintain consciousness and absence of a rapid spontaneous return of adequate organ perfusion and consciousness.
Pulseless electrical activity
Persistent juvenile T-wave pattern
Retrograde P wave
Ventricular escape beat
Short PR interval
Low QRS voltage
Peaked T waves
Sine wave pattern