Which body system is primarily monitored by cardiac telemetry?

Cardiac telemetry primarily monitors the circulatory system, specifically the heart's electrical activity and rhythm. This system is responsible for pumping blood throughout the body, supplying oxygen and nutrients to tissues while removing waste products. Cardiac telemetry involves the continuous monitoring of heart rate, rhythm, and other cardiac functions, allowing healthcare providers to detect abnormalities such as arrhythmias or ischemia.

This monitoring is crucial in various clinical settings, particularly for patients with heart conditions, to ensure timely detection of any life-threatening issues. Each of the other systems listed plays an important role in the body's overall function but is not the primary focus of cardiac telemetry. For instance, while the nervous system regulates heart function and the respiratory system is involved in gas exchange, the primary concern of cardiac telemetry is the health and functioning of the heart within the circulatory system.