Which of the following is NOT a feature of Classical Type II Second Degree Heart Block?
A)There are always more P waves than QRS complexes.
B)The PRI is consistent on conducted beats.
C)Not all the P waves produce QRS complexes.
D)The PRI varies,with no obvious pattern.

Question

Quizplus · Accepted Answer

Classical Type II Second Degree Heart Block, also known as Mobitz Type II, is characterized by a consistent PR interval on conducted beats (B), more P waves than QRS complexes due to blocked atrial impulses (A), and not all P waves producing QRS complexes (C). The PR interval does not vary; it remains constant on the beats that are conducted (B), making D incorrect because it suggests a varying PR interval with no pattern, which is not a feature of Type II but rather could suggest Type I (Mobitz Type I) or another atrioventricular block.

Which of the Following Is NOT a Feature of Classical