The process of chronic renal failure is divided into four stages, namely, renal insufficiency compensatory stage, renal insufficiency decompensated stage, renal failure stage and uremia stage. As long as the patient's condition has reached the period of uremia, the dialysis treatment should be started in time. Specifically, the best time for dialysis is to reach the following indicators: blood creatinine is more than 8mg/dl (> 707.2umol/L) and creatinine clearance is less than 10ml/min. This timely and active treatment can reduce the adverse reaction after dialysis, reduce the various complications caused by toxins, benefit the recovery of the body, keep the patient good physical condition and higher quality of life, and reduce the total cost of treatment.
The timing of dialysis should be considered comprehensively according to the patient's condition, depending on the specific circumstances of the patient. For renal failure caused by diabetic nephropathy, the complications are rapid and the complications are often seen, usually earlier than those of other patients. Dialysis should be started when the creatinine clearance rate is less than 15ml/min. For the elderly and malnourished patients, because of their less muscle volume and low serum creatinine level, they often fail to reflect the actual renal function of the patients, so they should not only look at the blood creatinine value, but should refer to the index of creatinine clearance more. In addition to the detection of renal function, whether or not to begin dialysis should also refer to the clinical manifestations of the patients, such as severe fluid retention, pulmonary edema, uncontrolled electrolyte disturbances (such as hyperkalemia) and acid-base balance disorder, severe hypertension, pericarditis, and cardiac dysfunction should all begin dialysis treatment.
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