Final answer:
Bipolar leads are attached to different parts of the body, including the extremities and chest, to measure the electrical activity of the heart.
Step-by-step explanation:
Bipolar leads are attached to different parts of the body to measure the electrical activity of the heart. The most common locations for attaching bipolar leads are the extremities and the chest. Specifically, these leads include the standard limb leads (Lead I, Lead II, Lead III), augmented limb leads (aVR, aVL, aVF), and precordial leads (V1-V6).
For example, Lead II is attached to the right arm (negative electrode) and left leg (positive electrode). This lead records the electrical activity between the right arm and left leg, which corresponds to the inferior region of the heart.
In addition to the limb leads, precordial leads are placed on the chest to provide a more comprehensive view of the heart's electrical activity. Each precordial lead, such as V1 or V4, is attached to a specific position on the chest wall to capture the electrical changes occurring in different areas of the heart.