Proficiency testing and external quality assessment
have been and should remain an integral part of laboratory quality assurance.
Our proficiency study showed surprisingly good overall performance of participating laboratories than most of our previous external quality assessments
Characterization and evaluation of external quality assessment
The lack of agreement among results from routine procedures was identified by the United Kingdom National External Quality Assessment
Scheme program that used commutable samples for performance assessment.
External quality assessment
is widely considered to be necessary for the maintenance or improvement of the quality of laboratory testing.
Twenty laboratories from Latin America and the Caribbean are registered in a program sponsored by WHO called the International External Quality Assessment
Scheme for Hematology.
IEQAS partners with the World Health Organization (WHO) and the United Kingdom's National External Quality Assessment
Scheme for Blood Coagulation.
Contract notice: Laboratory studies of external quality assessment
An optimal external quality assessment
(EQA)  scheme is characterized by the use of commutable, stable, and homogeneous control materials with the same matrix as patient samples (1, 2).
Contract award: External quality assessment
on antimicrobial susceptibility testing for national public health laboratories for Salmonella and Campylobacter.
The scope of external quality assessment
(EQA) (1) in laboratory medicine has evolved considerably (1).
The UK National External Quality Assessment
Service for Histocompatibility and Immunogenetics (UK NEQAS for H&I) provides a range of External Quality Assessment
schemes for laboratories operating clinical histocompatibility and immunogenetics (H&I) services.
Nevertheless, results submitted to the international Vitamin D External Quality Assessment
Scheme (DEQAS) have shown a gradual reduction in interlaboratory imprecision (CV) in recent years--from >30% in 1995 to 15% in 2011.
Contract notice: External quality assessment
(EQA) schemes for supporting the surveillance of Legionnaires~ disease at a European level
1c] testing were caused by failure to perform testing of external quality assessment
(EQA) samples or failure to submit the results of measurements of EQA samples in a timely manner.