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Evaluation of Dade Behring N Latex Cystatin C reagent on Abbott ci8200.

Authors
  • Flodin, Mats
  • Hansson, Lars-Olof
  • Larsson, Anders
Type
Published Article
Journal
Upsala journal of medical sciences
Publication Date
Jan 01, 2006
Volume
111
Issue
2
Pages
209–213
Identifiers
PMID: 16961176
Source
Medline
License
Unknown

Abstract

Plasma cystatin C has been shown in several studies to be superior to plasma creatinine for estimation of glomerular filtration rate (GFR). Reporting cystatin C results in mL/min using conversion formulas for transforming cystatin C expressed as mg/L to GFR expressed as mL/min has greatly facilitated the clinical use of the marker. At our hospital we have an increasing demand for cystatin C and at present we perform over 1400 cystatin C analyses a month. The test is available at all hours. This in combination with the volume emphasises the need to have the assay close to the routine chemistry instrument to reduce handling time per test and time to report test results. We have thus evaluated the Dade Behring N Latex Cystatin C assay (Dade Behring, Deerfield, IL, USA) on Architect ci8200 (Abbott Laboratories, Abbott Park, IL, USA). The nephelometric method on the ProSpec (Dade Behring) and the turbidimetric method on Architect ci8200 showed very good agreement (y = 1.0072x + 0.0042; R2 = 0.987). Accordingly, running the cystatin C analyses on a chemistry instrument (Architect ci8200) would be proper to increase the availability of the analysis and reduce turnaround times.

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