How Do Doctors Diagnose Blocked Arteries?
There is no single test that can identify every case of atherosclerosis. Doctors usually begin by reviewing a person's medical history, lifestyle, family history, and symptoms. Blood pressure measurements and blood tests can help identify risk factors such as elevated cholesterol and blood glucose.
Depending on the symptoms and suspected location of the blockage, additional investigations may be recommended. An electrocardiogram (ECG) can assess the heart's electrical activity, while an exercise stress test may help evaluate how the heart responds to physical activity in selected patients.
Other tests, including ultrasound, CT angiography, or coronary angiography, may be used when clinically appropriate to examine blood vessels and identify narrowing. Not everyone needs advanced imaging, and the choice of test depends on individual risk and medical findings.