A QS pattern in V₁ is characteristic of
A)complete heart block.
B)Mobitz II second-degree AV block.
C)LBBB.
D)RBBB.

Question

Quizplus · Accepted Answer

A QS pattern in V₁ is characteristic of a Left Bundle Branch Block (LBBB). This pattern indicates that the electrical impulse in the heart is not being properly conducted through the left bundle branch, affecting the sequence and manner in which the heart muscle is activated and contracts, particularly affecting the ventricles' depolarization pattern visible on an ECG.

A QS Pattern in V₁ Is Characteristic of