Final answer:
All cardiac rehabilitation sessions should be monitored with continuous ECG monitoring in patients with known CVD who are at a moderate-to-high risk for cardiac complications.
Step-by-step explanation:
In patients with known cardiovascular disease (CVD) who are at a moderate-to-high risk for cardiac complications, all cardiac rehabilitation sessions should be monitored with continuous ECG monitoring. This allows for the detection of any abnormality or arrhythmia during exercise, which may require immediate intervention. Continuous ECG monitoring provides real-time information regarding the patient's heart rate, rhythm, and ischemic changes, ensuring safety during exercise.