In telemetry, what does the term "lead" refer to?

In telemetry, the term “lead” refers to an electrode placement that detects the electrical activity of the heart. Each lead corresponds to a specific configuration of electrodes on the skin, which allow the monitor to capture the heart's electrical signals from different angles. This information is critical for diagnosing and monitoring various cardiac conditions, as it enables healthcare professionals to evaluate the heart’s rhythm, rate, and overall function.

Each lead provides unique insights into the heart’s electrical activity based on its position on the patient's body. By analyzing these leads, clinicians can identify arrhythmias, ischemia, or other cardiac issues, making this aspect fundamental to effective telemetry monitoring.