Paroxysmal AV block is associated with:: (A) First degree block, (B) Type I second degree block, (C) Type II second degree block, (D) Third degree block
Answer is C. Ans. C. Type II second degree block* Paroxysmal AV block are series of non-conducted P waves associated with Second-degree AV block (particularly type II).* It implies significant conduction system disease and is an indication for permanent pacing.ECG shows multiple non-conducted P waves after a period of sinus bradycardia with a normal PR interval.