Which of the following is a criterion for a diagnosis of BBB?
A)P wave wider than the QRS
B)Heart rate greater than 100
C)More P waves than QRS complexes
D)QRS of 0.12 seconds or greater

Question

Quizplus · Accepted Answer

A diagnosis of BBB requires a QRS complex duration of 0.12 seconds or greater. Wider QRS complexes can indicate delayed or blocked conduction through the ventricles, which may be caused by a variety of pathological conditions. P wave morphology and heart rate are not diagnostic criteria for BBB. Having more P waves than QRS complexes would indicate a potential atrioventricular (AV) block, but not necessarily a BBB.

Which of the Following Is a Criterion for a Diagnosis