The normal value of renal dynamic imaging is between 100-120 ml/min. When renal insufficiency occurs, it can lead to a decrease in renal blood flow. Renal dynamic imaging can assess renal function and guide the patient’s prognosis and next treatment plan. If the patient’s glomerular filtration rate is <15ml/min, it is stage V of chronic kidney disease, in this stage, in addition to the treatment of oral renal preservation drugs, such as Jinshuibao, medicinal charcoal, Haikun Renxie capsule, compound alpha ketophene, etc., the patient should also be active in the preparation for renal dialysis, such as endovascular fistulae. For chronic kidney disease stage IV, the glomerular filtration rate is between 15-29ml/min, which requires regular renal therapy to preserve the residual renal function and slow down the progression of the disease, if not actively treated, it will rapidly progress to stage V of the kidney disease, which affects the quality of survival of the patients. When the glomerular filtration rate is >30ml/min, it is chronic kidney disease stage I to III.