When performing an ECG, what is the primary goal of placing the patient in a supine position?

The primary goal of placing the patient in a supine position during an ECG is to ensure accurate readings. When the patient is lying flat on their back, this position provides optimal access to the chest for the placement of electrodes. It helps to create a stable environment that minimizes interference from body movement and allows for proper electrode contact with the skin, which is crucial for obtaining clear electrical signals from the heart. Accurate readings are essential for the proper assessment of the heart's electrical activity, which is the primary purpose of an ECG.

While other factors such as comfort, minimizing movement, and aiding blood circulation can be important, the supine position is specifically beneficial for achieving the most reliable and precise measurements of cardiac activity.