Test 1 analyser for determination of ESR. 1. Practical evaluation and comparison with the Westergren technique

Scandinavian Journal of Clinical and Laboratory Investigation
Max R HardemanAnna A Bouman

Abstract

various modifications of the Erythrocyte Sedimentation Rate (ESR) determination have been suggested since the original Westergren procedure that has been adopted as the gold standard by the International Council for Standardization in Haematology (ICSH). Recently, an automated method, (Alifax Test 1), based on a technique completely different from Westergren, has been introduced. In this comparative study, ESR of blood from 680 patients with various rheumatic diseases was determined on both Test 1 and the StaRRsed automated ESR analyser which performs measurements in accordance with ICSH specifications. Furthermore the robustness of the new technique was evaluated. Direct correlation of Test 1 and StaRRsed measurements confirmed the results of previous studies: an overall correlation coefficient of R = 0.90. However, further statistical analysis showed that, depending on the instrument that was used, in 78 samples (i.e. 11.5%) the results could lead to different treatment suggestions. Furthermore it appeared that several procedural factors could influence the final Test 1 outcome. Due to its sensitivity for procedural variations, Test 1 measurements should be carried out under strictly standardized conditions. Especially at the...Continue Reading

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Citations

Apr 3, 2019·Clinical Chemistry and Laboratory Medicine : CCLM·Ivana LapićMario Plebani
Mar 1, 2011·International Journal of Laboratory Hematology·J M JouUNKNOWN International Council for Standardization in Haematology
Nov 26, 2009·Scandinavian Journal of Clinical and Laboratory Investigation·Max R HardemanAnna A Bouman
May 22, 2013·Clinical Orthopaedics and Related Research·Pouya AlijanipourJavad Parvizi
May 13, 2017·International Journal of Laboratory Hematology·A KratzUNKNOWN International Council for Standardization in Haematology (ICSH)
May 1, 2021·International Journal of Laboratory Hematology·Ryosuke MakiAkimichi Ohsaka

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