A member asked:

Does protein in urine always mean kidney dysfunction?

4 doctors weighed in across 2 answers

No: It is possible to have isolated proteinuria in which case there is protein in the urine (no greater than 3g/24h) but no other abnormalities in urine or blood tests, as well as no symptoms associated with kidney problems and a normal physical exam. It is a diagnosis of exclusion.

Answered 7/25/2013

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No: Other causes range from bladder infection to a few percent of people who get protein in the urine just from standing up -- we pick these folks up because the first-voided morning urine has little or no protein.

Answered 7/25/2013

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