An echocardiogram is a valuable tool in assessing the cardiac output. It also helps in determining the perfusion. An<unk>  is used for determining the cause of<unk>  in certain abdominal conditions such as any liver injuries, abdominal bleeds, and injuries to the major abdominal vessels.
Confusion echocardiography or ultrasound
Encephalopathy electrocardiogram
Neurocardiogenic syncope physical examination
Ventricular fibrillation physical examination
Delirium tremens electrocardiogram
Pulseless ventricular tachycardia physical examination
Cyanosis electrocardiogram
Myxedema coma electrocardiogram