In a hemiblock
A)the patient has signs of cardiovascular collapse.
B)the QRS is widened to at least 0.12 seconds.
C)one of the fascicles of the left bundle branch is blocked.
D)the axis is normal.

Question

Quizplus · Accepted Answer

In a hemiblock, one of the fascicles of the left bundle branch is blocked. This can result in certain changes in the ECG, such as a delay in ventricular activation in the affected area and a shift in the QRS axis. However, it does not necessarily cause signs of cardiovascular collapse or a widened QRS complex. The axis may also be shifted, depending on which fascicle is affected.

In a Hemiblock