Rapid heartbeat is recommended to hang up with the department of cardiovascular medicine. Rapid heartbeat is usually caused by arrhythmia, patients can go to the cardiovascular department, and according to the doctor’s instructions for 24-hour dynamic electrocardiogram, thyroid function, cardiac ultrasound and other tests, so that the doctor can make a comprehensive study of the patient’s condition. Although the cause of the rapid heartbeat may be more complex, and may not even be of cardiac origin, cardiovascular physicians are more experienced in comprehensive research and judgment, and are capable of combining various types of examination reports on the patient’s symptoms to investigate and ultimately give a definitive judgment. In addition, if a patient has any cardiac conditions such as abnormal heart rhythm, insufficient blood supply to the heart muscle, colic, or self-consciousness, he or she should give priority to cardiovascular medicine for initial examination and treatment according to the doctor’s instructions.