The charge for renal artery ultrasound is usually about$130. Ultrasound is the main way to check whether both renal arteries are normal. Try to fast before the examination to avoid intestinal gas interference. The renal artery examination includes the left renal artery and the right renal artery, which both originate from the abdominal aorta, and it is important to observe the alignment and measure the lumen internal diameter and flow rate. The normal renal artery has an internal diameter of approximately 5-7 mm, a peak flow velocity of approximately 0.6-1.2 m/s, and is generally symmetrical bilaterally. The most common lesion of the renal artery is stenosis. In stenosis, the blood flow velocity is significantly increased, which can cause hypertension. If there is a malignant tumor growing in the kidney, the renal artery is sometimes occluded with a cancerous thrombus. If there is double kidney failure, the blood flow in the renal artery will slow down, and all these symptoms can be detected by ultrasound. You must go to a regular, qualified hospital for the ultrasound of the renal arteries. The ultrasound technology is advanced and experienced, and the charges are reasonable.