The main indicators for determining heart failure include atrial natriuretic peptide, cardiac ultrasound, and other ancillary indicators include electrocardiograms, and signs and symptoms that the patient is experiencing heart failure. The two most common indicators of heart failure are blood tests for atrial natriuretic peptide (ANP) and cardiac ultrasound. An increase in atrial natriuretic peptide often indicates the presence of heart failure, and the higher the value, the more severe the heart failure; cardiac ultrasound can also determine whether a patient has heart failure through heart function and ejection fraction. The specificity of the above two indexes is not 100%, sometimes in the early stage of heart failure, the above indexes may be normal, and renal function abnormalities in patients with brain natriuretic peptide may also be increased but not necessarily heart failure. Therefore, in order to confirm the diagnosis of heart failure, sometimes it is necessary to use other auxiliary indicators: for example, electrocardiogram (ECG). The patient’s symptoms and signs, such as left heart failure patients will have progressive dyspnea, chest tightness and fatigue symptoms, auscultation of both lungs will have wet rales, right heart failure patients will have abdominal distension indigestion and nausea symptoms, the presence of subcutaneous edema, liver bruising and swelling and other signs. To clarify the presence of heart failure, need to go to the cardiology department for further consultation.