Pediatric Nephrology

, Volume 13, Issue 8, pp 697–700 | Cite as

A practical approach to proteinuria

  • J. M. Bergstein
Practical Pediatric Nephrology

Abstract 

Proteinuria is defined as urinary protein excretion exceeding 150 mg/day. It may result from nonpathological (posture, fever, exercise) or pathological (glomerular or tubular) processes. Glomerular proteinuria is an early sign of kidney disease and may also play a role in the progression of glomerular damage. Asymptomatic proteinuria is common; it may be transient or persistent. Transient proteinuria is a benign condition and requires no evaluation. Persistent proteinuria can be the first sign of kidney disease. Persistent proteinuria commonly results from disorders associated with increased glomerular permeability such as nephrotic syndrome, glomerulonephritis (e.g., post-infectious, membranous, membranoproliferative, lupus, IgA), and genetic defects (Alport syndrome, mesangial sclerosis). Tubular disorders should also be considered. Evaluation for the underlying cause is traditional. Whether the early detection and evaluation of proteinuria prevents progressive disease is unknown.

Key words Proteinuria Postural Fever Exercise Tubular Glomerular 

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Copyright information

© IPNA - International Pediatric Nephrology Association New York, USA 1999

Authors and Affiliations

  • J. M. Bergstein
    • 1
  1. 1.James Whitcomb Riley Hospital for Children, Indiana University School of Medicine, 702 Barnhill Drive, Indianapolis, IN 46202, USA, e-mail: jbergste@iupui.edu, Tel.: +1-317-274-2563, Fax: +1-317-278-3599IN

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