Chronic nephritis is an allergic disease caused by a wide variety of etiological factors.
Only a small % of cases are obviously due to the progression of acute nephritis.
The majority of patients with chronic nephritis have no history of acute nephritis.
The disease is common in young adults and middle-aged people.
Main points of diagnosis: There are three types of chronic nephritis according to the clinical features.
1 Common type: The course of this type is persistent. The quantitative examination of urinary protein is at a range between 1.5g~3.5g/day. Patients may have hypertension, hematuria, cylinduria and decrease of renal function.
2 Nephrotic type: In addition to the features of the common type, quantitative examination of urinary protein is greater than 3.5g/day, the serum albumin is less than 3.5g/day. Marked edema is the characteristic feature of this type.
3 Hypertensive type: a persistent hypertension is the predominant
manifestation of this type of chronic nephritis besides the features of
the common type.