[Epidemiology of glomerulonephritis and results of urine and serum studies]

On the basis of an extensive data material it was demonstrated that the early recognition of a glomerulonephritis is dependent on the proof of a proteinuria and indeed it is independently of its size and reproducibility. Extensive serological examinations are without diagnostic significance, especially the estimation of the serum complement and the immunoglobulins. Patients with proteinuria should be included in a kidney dispensaire system. The diagnostik programm, including percutaneous renal biopsy, is dependent on the size and constancy of proteinuria and other urinary findings like microscopic hematuria.