Angina pectoris can be manifested as pain in the anterior region of the heart, stuffiness, or unknown uncomfortable symptoms, is a relatively common clinical disease, especially the elderly patients often complain, we must do a good job of differential diagnosis, because only a better clear diagnosis can be better for the patient to alleviate the uncomfortable symptoms. Generally speaking, the most basic tests are electrocardiogram, chest X-ray, and cardiac ultrasound examination. First of all, I would like to explain why these three tests are called the most basic tests. Electrocardiogram: Patients with angina pectoris often show signs of myocardial ischemia, which means that there may be a flattening of the t-wave, an inversion of the t-wave, or a horizontal shift of the st-segment. These signal the onset of precordial discomfort and are considered to be angina-related. Chest X-ray: This is especially important for the elderly, as sometimes they have lung space or severe lung infections, which may cause symptoms similar to angina pectoris, so it is a good way to identify them, as well as to see if the heart is enlarged and whether the aortic nodes are calcified. Cardiac ultrasound: this test is mainly to assess the patient’s cardiac function, as well as valve structure, heart size, sometimes there are problems with the code structure, can also occur similar to angina like uncomfortable symptoms, there is also, if serious myocardial ischemia, acute myocardial infarction patients, in the ultrasound can be manifested in the ventricular wall movement incoordination, left ventricular ejection fraction, left ventricular end-diastolic flow volume and left ventricular end-systolic flow volume, and so on. and left ventricular end-systolic flow volume. If you still can’t tell whether it’s angina or not after doing the above tests, and the condition is not critical, then you can do a coronary ct test, which is the gold standard for diagnosing coronary angina. If it is an acute attack, then you should do a myocardial enzyme test, and if it is clear that it is myocardial infarction, then you can do coronary angiography in emergency. These are the diagnosis of angina pectoris examination methods, but not every one of the above checks, patients need to do one by one, specifically need to do which some? Also combined with the patient’s actual condition to choose, the condition is to choose, on the one hand, sometimes also combined with the patient’s economic conditions, because like the coronary artery ct and coronary angiography examination, relatively expensive, so that the treatment of the disease examination, the need for patients to carry out a variety of considerations.