TY - JOUR
T1 - Behind the scenes of EQA-characteristics, capabilities, benefits and assets of external quality assessment (EQA)
T2 - Part III-EQA samples
AU - Buchta, Christoph
AU - Marrington, Rachel
AU - De La Salle, Barbara
AU - Albarède, Stéphanie
AU - Albe, Xavier
AU - Badrick, Tony
AU - Berghäll, Heidi
AU - Bullock, David
AU - Cobbaert, Christa M.
AU - Coucke, Wim
AU - Delatour, Vincent
AU - Geilenkeuser, Wolf Jochen
AU - Griesmacher, Andrea
AU - Henriksen, Gitte M.
AU - Huggett, Jim F.
AU - Juhos, István
AU - Kammel, Martin
AU - Luppa, Peter B.
AU - Meijer, Piet
AU - Pelanti, Jonna
AU - Pezzati, Paola
AU - Sandberg, Sverre
AU - Spannagl, Michael
AU - Thelen, Marc
AU - Thomas, Annette
AU - Zeichhardt, Heinz
AU - Restelli, Veronica
AU - Perrone, Lucy A.
N1 - Publisher Copyright:
© 2024 Walter de Gruyter GmbH, Berlin/Boston 2024.
PY - 2025
Y1 - 2025
N2 - Providers of external quality assessment (EQA) programs evaluate data or information obtained and reported by participant laboratories using their routine procedures to examine properties or measurands in samples provided for this purpose. EQA samples must offer participants an equal chance to obtain accurate results, while being designed to provide results in clinically relevant ranges. It is the responsibility of the EQA provider to meet the necessary requirements for homogeneity, stability and some other properties of the EQA items in order to offer participants a fair, reliable and technically interesting EQA experience. Thus, the samples are at the heart and in the centre of EQA and its success depends on their quality. This manuscript describes the requirements for EQA samples and the activities of EQA providers to achieve them.
AB - Providers of external quality assessment (EQA) programs evaluate data or information obtained and reported by participant laboratories using their routine procedures to examine properties or measurands in samples provided for this purpose. EQA samples must offer participants an equal chance to obtain accurate results, while being designed to provide results in clinically relevant ranges. It is the responsibility of the EQA provider to meet the necessary requirements for homogeneity, stability and some other properties of the EQA items in order to offer participants a fair, reliable and technically interesting EQA experience. Thus, the samples are at the heart and in the centre of EQA and its success depends on their quality. This manuscript describes the requirements for EQA samples and the activities of EQA providers to achieve them.
KW - EQA
KW - external quality assessment
KW - interlaboratory comparison
KW - proficiency testing (PT)
UR - http://www.scopus.com/inward/record.url?scp=85215847754&partnerID=8YFLogxK
U2 - 10.1515/cclm-2024-1291
DO - 10.1515/cclm-2024-1291
M3 - Review article
C2 - 39753204
AN - SCOPUS:85215847754
SN - 1434-6621
JO - Clinical Chemistry and Laboratory Medicine
JF - Clinical Chemistry and Laboratory Medicine
ER -