If the patient is currently experiencing chest tightness and suddenly faints, the condition may be due to a transient ischemic attack or hypotension. It is recommended that the patient should have an electrocardiogram performed to check both the actual heart rate and blood pressure. It is also possible that the patient may have a high degree of atrioventricular block, in which case the patient may experience fainting. It is also recommended that the patient should have a head CT or head MRI if necessary to clarify the presence of current cerebrovascular disease. There are many diseases that can cause chest tightness and fainting, and further tests are needed to clarify the diagnosis. If it is caused by low blood pressure, it is recommended that the patient can take an appropriate oral pulse drink, and at the same time, the cause of the low blood pressure should be identified and treated for its primary disease.