Patients visit the hospital to check kidney function, the specific price is not exactly the same in different areas, the price of simple kidney function test is about 80 yuan. But the first time to check the kidney function of patients, it is recommended to further systemic examination, such as check blood routine, urinary routine, renal function, liver function, blood lipids, blood sugar, urological ultrasound, rheumatic immune system and other examinations. Actively look for the primary disease. The most common clinical primary diseases include glomerulonephritis, hypertensive kidney damage, diabetic nephropathy, vasculitis, etc. Actively treating the primary disease, delaying the progression of the disease and preserving the residual kidney function have good significance for the prognosis of patients. It is also recommended to review the disease every six months to prevent disease progression and delay, resulting in irreversible consequences.