肾功能不全的分期一期,肾功能储备代偿期。因为肾脏储备代偿能力很大,因此临床上肾功能虽有所减退,但其排泄代谢产物及调节水、电解质平衡能力仍可满足正常需要,临床上并不出现症状,肾功能化验也在正常范围或偶有稍高现象。二期,肾功能不全期。肾小球已有60%~75%的损害。肾脏排泄、代谢功能已有一定障碍,肌酐、尿素氮 Staging of renal insufficiency, renal function reserve compensatory phase. Because of the great compensatory capacity of the kidney reserve, so although clinical renal function decline, but its excretion of metabolites and regulate water and electrolyte balance can still meet the normal needs of clinically no symptoms, renal function tests are normal Range or occasional slightly higher phenomenon. Two, renal insufficiency period. Glomerular already 60% to 75% of the damage. Kidney excretion, metabolic function has been a certain obstacle, creatinine, urea nitrogen