Comparative Study Between Westergren and Erythro cyte Sedimentation Pipette Method for Determination of Erythrocyte Sedimentation Rate

ATCHASAI SIRITANTIKORN, M.Sc.*, VIROJ WIWANITKIT, M.D.*

Affiliation : *Department of Laboratory Medicine, Faculty of Medicine, Chulalongkom University, Bangkok 10330, Thailand.

AbstractA comparative study between standard Westergren and erythrocyte sedimentation pipette (SediplastR) methods for determination of erythrocyte sedimentation rate was performed on 80 individual subjects. From the study, the comparison-of-methods plot SediplastR method (X) vs Westergren method (Y) gave the least square linear regression equation of Y 1.001 X - 2.24 (r =0.99). Precision analysis gave a coefficient of variation below 3 per cent. The new erythro cyte sedimentation pipette method seems to be an effective and safe method for erythrocyte sedimentation rate determination in the present day.

Keywords : Erythrocyte Sedimentation Rate, Westergren Method, Pipette

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