Evaluating the child with proteinuria

Porteinuria is a common laboratory finding in children. It might represent a benign condition or herald the presence of a serious underlying renal dis ease or systemic disorder. Investigation to confirm a diagnosis or seek rea ssurance is important. This paper discusses the various causes of proteinur ia, and those aspects of the history, physical examination, and the laborat ory tests that will help determine the cause or reassure that a serious pro blem is not currently present.