Arterial embolism is a clinical manifestation of acute ischemia caused by a blood clot or a foreign body that enters the blood vessel and becomes an embolus, rushing with blood flow and stopping in an artery with a caliber similar to the size of the embolus, causing arterial obstruction. It is characterized by rapid onset, obvious symptoms, rapid progress and serious prognosis, and requires active management. The clinical manifestations of acute arterial embolism can be summarized as the 5 “P’s”: pain, abnormal sensation, paresthesia, pulselessness and pallor. What are the tests for aortic blood supply disorders? 1.Laboratory tests The disease still lacks sensitive and specific early laboratory diagnostic methods. Patients mostly have abnormal lipid metabolism, mainly manifested as increased total blood cholesterol, increased LDL cholesterol, decreased HDL cholesterol, increased blood triglycerides, increased blood β lipoprotein, increased Apo B, decreased Apo A, abnormal lipoprotein electrophoresis pattern, and more than 90% of patients show type II or IV hyperlipoproteinemia. 2. Blood rheological examination often shows increased blood viscosity. Platelet activity may be increased. 3.X-ray In addition to the aforementioned manifestations of aortic atherosclerosis, selective or electronic computerized digital subtraction arteriography can show luminal narrowing or aneurysmal lesions caused by atherosclerosis of coronary, cerebral, renal, mesenteric and extremity arteries, as well as the location, extent and degree of lesions, which can help determine the indications for surgical treatment and select the way to perform surgery. 4.Doppler ultrasonography helps to determine the blood flow in the arteries of the extremities and renal arteries. 5.Intravascular ultrasound and angioscopy are methods to observe atherosclerotic lesions directly from the arterial lumen. 6.Radionuclide examination helps to understand the blood supply of brain, heart and kidney tissues. 7.Echocardiography, electrocardiography and the characteristic changes shown by its stress test help to diagnose coronary atherosclerosis. 8.Other Electrical impedance diagrams of the limbs, electrical impedance diagrams of the brain, as well as electroencephalography, brain X-ray, computerized X-ray or magnetic resonance tomography can help to determine the function of the limbs and cerebral arteries and the lesions of the brain tissue.