The<unk>  is one of the manifestations of severe hyperkalemia. The<unk>  depicts worsening cardiac conduction delay caused by the elevated level of extracellular potassium. The morphology of this sinusoidal<unk>  on ECG results from the fusion of wide QRS complexes with T waves.
Sine wave pattern
U wave alternans
T wave alternans
PR interval alternans
Inverted P wave
Retrograde P wave
Tombstone ST elevation
Poor R Wave Progression