How is proteinuria calculated in the workup for chronic kidney disease (CKD) in children?

Updated: Jul 21, 2020
  • Author: Sanjeev Gulati, MD, MBBS, DNB(Peds), DM, DNB(Neph), FIPN(Australia), FICN, FRCPC(Canada); Chief Editor: Craig B Langman, MD  more...
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The most appropriate, practical, and precise method for estimation of proteinuria in children is to calculate the protein-to-creatinine ratio in a spot urine specimen. Patients with a positive dipstick test finding (1+ or greater) should undergo quantitative measurement (protein-to-creatinine ratio or albumin-to-creatinine ratio) within 3 months to confirm proteinuria. When postpubertal children with diabetes mellitus of 5 or more years' duration are screened, albumin should be measured in a spot urine sample using either albumin-specific dipstick or albumin-to-creatinine ratio testing.

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