J Lab Med Qual Assur.  2010 Jun;32(1):25-43.

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

• Kwon GC
• Kim JM
• Park YB
• Park JY
• Song WH
• Yoon SY
• Lee YK
• Lee WI
• Chang YH
• Chei MO
• Ham CK

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.

Keyword

External quality assessment; Hematology

MeSH Terms

Blood Cells
Cell Count
Erythrocyte Count
Hematocrit
Hematology
Hemoglobins
Korea
Leukocyte Count
Partial Thromboplastin Time
Platelet Count
Prothrombin Time
Hemoglobins