For most patients blood creatinine 800μmol/L need dialysis treatment. The glomerular filtration rate of patients with blood creatinine 800μmol/L is generally less than 10ml/min, which reaches the standard of dialysis and requires hemodialysis or peritoneal dialysis, especially those with severe edema, severe electrolyte disorders, acid-base imbalance. If the patient although creatinine 800μmol/L, but the general state is good, urine output is normal, there is no electrolyte disorder, acid-base imbalance and drugs are difficult to control hypertension, can also be conservative treatment first, but the patient will enter the state of needing dialysis in a short period of time, so need to be prepared for dialysis in advance, such as hemodialysis patients need to be prepared for arteriovenous endovascular fistula in advance. Patients whose creatinine reaches 800μmol/L need to choose whether to take oral medication or undergo dialysis according to the patient’s condition under the guidance of a specialist, and do not believe in secret prescriptions, so as not to delay the treatment or even cause life-threatening injuries.