Resting ECG is a safe and non-invasive examination that is quick and convenient. Healthcare professionals only need to collect and analyze the weak electrical currents generated by the patient’s heart, observing changes in cardiac function, in order to diagnose heart problems. In addition to assessing arrhythmias, it can also evaluate conditions such as myocardial infarction (heart attack) and abnormalities in the cardiac conduction system. Therefore, this examination is often used as an initial and basic method for evaluating heart health.
Resting ECG does have its limitations. It can only be performed when the patient is in a resting state, making it difficult to detect heart rhythm abnormalities or conduct a comprehensive evaluation for patients whose heart conditions are triggered by physical activity, such as coronary artery disease or intermittent arrhythmias. If the arrhythmia occurs intermittently, further cardiac examinations or tests such as a 24-hour Holter monitor or a 1- to 2-week continuous ECG monitoring may be recommended to capture and analyze the heart’s electrical activity over an extended period. These additional tests provide a more comprehensive assessment of the heart’s function and can help identify any underlying cardiac conditions.