True about U waves is all except
The U wave normally goes in the same direction as the T waveU -wave size is inversely propoional to hea rate: the U wave grows bigger as the hea rate slows downU waves generally become visible when the hea rate falls below 65 bpm
It is due to Delayed repolarisation of Purkinje fibres
Maximum normal amplitude of the U wave is 1-2 mm
The U wave normally goes in the opposite direction as the T wave
U waves generally become visible when the hea rate falls below 65 bpm
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