A patient with a very unusual P wave is more seriously ill than a patient with a very unusual QRS complex.

Question

Quizplus · Accepted Answer

The appearance of an abnormal QRS complex usually indicates a significant abnormality in the ventricular depolarization process and can be associated with serious conditions such as myocardial infarction or bundle branch block. In contrast, an abnormal P wave typically indicates abnormalities in the atrial depolarization process, which can be associated with less serious conditions such as atrial fibrillation or flutter. Therefore, a patient with an unusual QRS complex is generally considered to be more seriously ill than a patient with an unusual P wave.

A Patient with a Very Unusual P Wave Is More