Journal of Laboratory Medicine and Quality Assurance  2010;32(1):25-43

Annual Report on External Quality Assessment in Hematology in Korea (2009).

Gye Cheol KWON 1 ; Ji Myung KIM ; Yeon Bo PARK ; Ji Young PARK ; Woon Heung SONG ; Soo Young YOON ; Young Kyung LEE ; Woo In LEE ; Yoon Hwan CHANG ; Mi Ok CHEI ; Chun Kyung HAM

Affiliations

+expand

Keywords

External quality assessment; Hematology

Country

Republic of Korea

Language

Korean

Abstract

Four trials of external quality assessment in diagnostic hematology were performed in 2009 with average 946 participating laboratories in Korea. We performed quality assessment for white blood cell count, hemoglobin, hematocrit, red blood cell count, platelet count, blood cell morphology, prothrombin time and activated partial thromboplastin time. The response rate was more than 98.2%. The coefficients of variation in hemoglobin, hematocrit and RBC count were stable but variable in platelet count and WBC count according to measuring cell counters. Test results of blood cell morphology showed variation among various cell morphologies.