What is the main purpose of rotating electrode locations in patients?

The main purpose of rotating electrode locations in patients primarily revolves around preventing skin irritation. When electrodes are placed on the skin, they can cause localized irritation due to pressure, moisture, and the adhesive used in the electrode. Consistently using the same electrode sites can lead to skin irritation, such as redness, rashes, or even skin breakdown over time. By rotating electrode locations, healthcare providers can give the skin time to recover, reducing the risk of irritation and ensuring patient comfort during ECG procedures.

While the other choices may have some relevance in specific contexts—for example, improving signal quality or reducing interference—these are not the primary reasons for moving electrode sites. Keeping the skin healthy is essential for accurate readings and patient well-being.