Which color represents the right arm electrode?

The color that represents the right arm electrode in standard electrocardiography (ECG) practices is indeed white. In a typical 12-lead ECG placement, the lead colors are designated according to established conventions. The white electrode is specifically assigned to the right arm, while other colors represent different limbs or locations.

Understanding these color codes is crucial for consistent ECG placement and accurate interpretation of the readings. The other colors—red, black, and green—are used for other specific electrodes such as the left arm, left leg, and right leg, respectively. Knowing the correct colors helps healthcare providers ensure that electrodes are placed in the right locations, which is vital for obtaining precise and reliable cardiac activity readings.