[Haematuria in children. II. Diagnostic problems in proteinuria and the nephrotic syndrome in childhood (author's transl)].

Methods for detection of proteinuria and its causes are reviewed. Recommendations are given concerning the diagnostic procedures after detection of pathological proteinuria. The nephrotic syndrome is discussed mainly under the aspect of predictability of the histo-pathological form of the glomerular lesions from clinical and biochemical parameters.