Question: what is type 1 av block?
Answer: In second-degree atrioventricular nodal block — also known as Wenckebach block or Mobitz Type I AV block — varying failure of conduction through the AV node occurs, such that some P waves may not be followed by a QRS complex. Unlike first-degree AV nodal block, a 1:1 P-wave-to-QRS-complex ratio is not maintained.