1. Thoracic X-ray: may reveal an enlarged heart, edema or pleural effusion which confirmed the diagnosis of CHF.
2. ECG: reveals tachycardia, ventricular hypertrophy and ischemia, an echocardiogram.
3. Laboratory examination: includes electrolytes, serum sodium levels revealed a low blood hemodilution that results from the presence of excess water retention, potassium, sodium, chloride, urea and blood sugar.
4. Sonogram (echocardiogram) to indicate the dimensions of ventricular enlargement, changes in the function / structure of the valve or area decreased ventricular contractility.
5. Cardiac catheterization: an indication of abnormal pressure and helps to distinguish right and left heart failure and valvular stenosis or insufficiency. Also assess patency of coronary arteries. Contrast agent is injected into the ventricles show abnormal size and ejection fraction / change in contractility.
6. Ultrasonography (USG): get an overview of free fluid in the abdominal cavity, and the picture of the liver and spleen enlargement. Enlarged liver and spleen is sometimes difficult to be checked manually when accompanied by ascites.