Lab Med Qual Assur.  2022 Jun;44(2):61-75. 10.15263/jlmqa.2022.44.2.61.

Report on the External Quality Assessment Scheme for Genetic Disorders and Other Human Genetics Molecular Diagnostics in Korea (2018–2021)

Affiliations
  • 1Department of Laboratory Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea

Abstract

The human genetics molecular diagnostic proficiency testing program of the Korean Association of Quality Assurance for Clinical Laboratory conducted two trials annually from 2018–2021. The program consisted of the same 20 test items throughout the four year period while the number of participating laboratories fluctuated depending on the test item. The survey included hereditary breast and ovarian cancer genes (BRCA1 and BRCA2), Li-Fraumeni syndrome (TP53), Wilson disease (ATP7B), achondroplasia (FGFR3), hearing loss and deafness (GJB2), Avellino type corneal dystrophy (TGFBI), multiple endocrine neoplasia 2 (RET), Huntington’s disease, spinocerebellar ataxia, spinal and bulbar muscular atrophy, mitochondrial encephalopathy with lactic acidosis and stroke-like episodes, myoclonic epilepsy with ragged red fibers, Leber hereditary optic neuropathy, Prader-Willi and Angelman syndrome, Duchenne muscular dystrophy, spinal muscular atrophy, fragile X syndrome, apolipoprotein E genotyping, methylenetetrahydrofolate reductase genotyping, and ABO genotyping. The sur vey showed high confidence levels and improved overall performance. A method-based proficiency test survey for molecular diagnostic testing serves as a useful approach to assess the performance of clinical laboratories.

Keyword

Laboratory proficiency testing; Molecular pathology; Molecular genetics; Molecular biology
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