Table. 2.

Comparison of proficiency testing items among various providers

Category KEQAS CAP RCPA INSTAND e.V. UK NEQAS Bio-Rad
Blood group phenotype ABO typing ABO grouping Blood grouping ABO typing ABO & RhD grouping ABO group
RhD typing Rh typing Rh/K phenotyping Rh(D) factor RhD typing
Kell antigen Red cell phenotyping Antigen typing
ABO subtyping ABO subgroup typing A–subtyping
Rh CcEe Red blood cell antigen typing, C, E, c, and e Rh–subtyping
Weak D test
Unexpected antibody testing Unexpected antibody, screening Antibody detection Antibody screening Antibody screening Antibody screening
Unexpected antibody, identification Antibody identification Antibody screen and identification Antibody identification Antibody identification Antibody identification
Crossmatching Blood crossmatching Compatibility testing Crossmatch/compatibility testing Crossmatch Compatibility
Electronic crossmatch
Direct antiglobulin test Direct antiglobulin test Direct antiglobulin test Direct antiglobulin test Direct antiglobulin test Direct antiglobulin test
Others Eluate survey Elution study
ABO Ab titration Anti-blood group titer (ABO, RhD) Anti-D titer
Genotyping ABO genotyping Red blood cell genotyping with predictive phenotype Red cell genotyping
Fetal red cell tests Fetal red cell detection Feto-maternal hemorrhage estimation Fetomaternal hemorrhage screening/quantification
Platelet testing Platelet antibody/crossmatch Platelet immunology
Platelet genotyping
Granulocyte testing Granulocyte genotyping
Granulocyte immunology
Dry challenge Educational challenge

Abbreviations: KEQAS, Korean Association of External Quality Assessment Service; CAP, College of American Pathologists; RCPA, Royal College of Pathologists of Australasia; INSTAND e.V, Gesellschaft zur Förderung der Qualitätssicherung in medizinischen Laboratorien e.V.; UK NEQAS, United Kingdom National External Quality Assessment Service.

Lab Med Qual Assur 2021;43:19~24 https://doi.org/10.15263/jlmqa.2021.43.1.19
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