Données actuelles sur le dosage de l'excrétion urinaire de l'albumine

Translated title of the contribution: Current issues in measurement and reporting of urinary albumin excretion

W. G. Miller, D. E. Bruns, G. L. Hortin, S. Sandberg, K. M. Aakre, M. J. McQueen, Y. Itoh, J. C. Lieske, D. W. Seccombe, G. Jones, D. M. Bunk, G. C. Curhan, A. S. Narva, J. L. Beaudeux

Research output: Contribution to journalReview articlepeer-review

3 Scopus citations

Abstract

Urinary excretion of albumin indicates kidney damage and is recognized as a risk factor for progression of kidney disease and cardiovascular disease. The role of urinary albumin measurements has focused attention on the clinical need for accurate and clearly reported results. The National Kidney Disease Education Program and the IFCC convened a conference to assess the current state of preanalytical, analytical, and postanalytical issues affecting urine albumin measurements and to identify areas needing improvement. The chemistry of albumin in urine is incompletely understood. Current guidelines recommend the use of the albumin/creatinine ratio (ACR) as a surrogate for the erro-prone collection of timed urine samples. Although ACR results are affected by patient preparation and time of day of sample collection, neither is standardized. Considerable intermethod differences has been reported for both albumin and creatinine measurement, but trueness is unknown because there are no reference measurement procedures for albumin and no referance materials for either analyte in urine. The recommanded reference intervals for the ACR do not take into account the large intergroup differences in creatinine excretion (e.g., related to differences in age, sex, and ethicity) nor the continuous increase in risk related to albumin excretion. Clinical needs have been identified for standardization of (a) urine collection methodes, (b) urine albumin and creatinine measurements based on a complete reference system, (c) reporting of test results, and (d) reference intervals for the ACR.

Translated title of the contributionCurrent issues in measurement and reporting of urinary albumin excretion
Original languageFrench
Pages (from-to)9-25
Number of pages17
JournalAnnales de Biologie Clinique
Volume68
Issue number1
DOIs
StatePublished - Jan 2010

Keywords

  • Albumin
  • Measurements
  • Reference
  • Standardization
  • Urine

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)

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