Certified EKG Technician (CET) Practice Exam 2025 – Comprehensive Test Prep

Question: 1 / 400

Why is P wave morphology significant in an EKG?

It indicates blood pressure levels

It provides insights into atrial health

The significance of P wave morphology in an EKG primarily lies in its ability to provide insights into atrial health. The P wave represents atrial depolarization, which is the electrical activity that triggers the contraction of the atria. Analyzing the shape, size, and duration of the P wave can reveal important information about the atria's structure and function.

For instance, variations in P wave morphology may indicate atrial enlargement, which can occur in conditions like hypertension or heart valve disease. Abnormalities in the P wave can also suggest atrial arrhythmias such as atrial fibrillation or atrial flutter, where the normal rhythm of atrial contractions is disrupted. Therefore, careful examination of the P wave contributes significantly to understanding the overall health of the atria and can guide further diagnostic and therapeutic decisions.

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It reflects ventricular function

It shows breathing patterns

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