Question: how to check if you have heart failure?
Answer: Blood tests. Your doctor may take a blood sample to look for signs of diseases that can affect the heart. ...  Chest X-ray. ...  Electrocardiogram (ECG). ...  Echocardiogram. ...  Stress test. ...  Cardiac computerized tomography (CT) scan. ...  Magnetic resonance imaging (MRI). ...  Coronary angiogram.