<prompt> Complete AV nodal block results in?Progressive increase of PR interval followed by dropped beatMore than 3 different morphologies of P wavesAbsent P wavesUnequal PP interval and RR interval  <response>: Option A: Progressive increase of PR interval followed by dropped hea beat is ECG feature of Mobitz I Hea Block Option B: More than 3 different morphologies of P wave is feature of Multifocal Atrial Tachycardia. Option C: Pwave is absent in atrial fibrillation. Option D: ECG finding of complete hea block 