Negative means normal.
The ECG exercise test is the most common of the ECG load tests, so it is also known as the exercise load test, and it is one of the most commonly used aids in the diagnosis of coronary heart disease.
Expanded information:
Exercise platelet test is an effective non-invasive method for diagnosing and evaluating coronary heart disease in recent years. As one of the non-invasive tests in the cardiovascular field, the exercise plate test is the easiest, safest and most reliable method of diagnosis and evaluation of coronary artery disease as long as clinicians' knowledge of the physiological principles, methodology and evaluation of the test results is improved through the selection of suitable subjects and the refinement of the result evaluation criteria.
Reference: