Exercise TEST


Exercise test is one of the major methods for surveying coronary vessels diseases. When the patient starts exercising, muscles need for blood perfusion increases and the heart has to beat stronger and faster. So when exercising, the heat is the most active organ of all and needs more blood. In a healthy heart, coronary vessels can meet such increased demand, however, when the coronary vessels are afflicted with stenosis, they cannot handle the task which causes the heart to suffer from hypoperfusion and hypoxemia and the pain ensues. Under this condition, changes can be observed in EKG, blood pressure and heart rate that demonstrate the disease. This is the base for exercise test administration.

Exercise test is not only used for diagnosing coronary stenosis but also helps to determine the tolerable level of activity for each patient. It can also be used to determine the cardiac tolerance level in patients experiencing cardiac infarction.

How to carry out exercise test?

Undergoing continuous EKG, blood pressure and heart rate monitoring, the patient walks on a treadmill device. The speed gradually increases and if the patient can reach ultimate allowable heart beat without any pain or pathologic changes , the test procedure stops and the result will be negative which means that the person is healthy; however, specific changes in EKG or blood pressure during the exercise test will be diagnosed with coronary stenosis. After injection of some drugs, changes will be made in the health when patient suffers from coronary stenosis and such changes can be detected by nuclear scanning or echocardiography.