Jam with Confidence: Rock Your Certified Rhythm Analysis Technician Exam 2026!

In the context of electrocardiography (ECG), unipolar leads are designed to measure electrical activity from a single electrode and compare it to a reference point, typically a virtual electrode derived from the average of multiple other electrodes. Augmented leads, such as aVR, aVL, and aVF, are classic examples of unipolar leads. They are created by combining the readings from two standard limb electrodes as the negative pole and a single electrode measuring the positive pole, allowing for a focused view of electrical activity from one angle.

Chest leads, also known as precordial leads (V1-V6), are also considered unipolar leads. They measure the electrical activity of the heart from specific locations on the chest wall, again providing a one-directional perspective on the cardiac electrical signals.

Therefore, the selection of augmented leads and chest leads as the types of unipolar leads is correct. Each of these lead types serves a critical role in providing detailed insight into the heart's function from different spatial orientations, contributing significantly to diagnosing and monitoring various cardiac conditions.