Urine Protein Creatinine Ratio

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Rationale

-  Rapid & well tolerated method to exclude proteinuria

-  May require 24hr urine protein to quantify extent of proteinuria

 

Features

-  Preferred collection method & more accurate than 24hr urine collection to exclude proteinuria

 

Procedure

-  Random urine sample

-  First morning void most accurate

-  Calculate urine Cr (mg):urine protein (mg)

 

Results

-  Child < 2yrs: normal <0.5

-  Adults

-  <0.2 (gram protein per gram Cr): normal

-  Equates to < 0.2g protein/day

-  >0.2: proteinuria

-  >3.5: nephritic

-  Equates to > 3.5g protein/day