The items that patients with cerebral infarction should review include checking blood and urine routine, blood lipids, blood sugar, liver function, kidney function, blood homocysteine and blood coagulation four items. The specific cost varies according to the level of the hospital, the cost of tertiary hospitals is relatively higher, the cost of secondary and primary hospitals should be lower, and the cost of tertiary hospitals is about 400 yuan. Electrocardiogram, cardiac ultrasound, abdominal ultrasound, and urological ultrasound should be checked, and the cost of tertiary hospitals is about 600 yuan; cranial CT should be checked, and the cost of CT is usually between 200-300 yuan. If necessary, cranial MRI can be examined, and the cost of each MRI sequence is about RMB 500.