Article: Defining and Reporting on Critical Values in Genetics: A Laboratory Survey.
The journal of applied laboratory medicine
2021 Volume 6, Issue 5, Page(s) 1299–1304
Abstract: Background: Although an obvious critical value in metabolic genetics would be ammonia, it is more challenging to define critical values in molecular genetics and cytogenetics. The objective of this study was to survey genetic laboratories in Ontario, ... ...
| Abstract | Background: Although an obvious critical value in metabolic genetics would be ammonia, it is more challenging to define critical values in molecular genetics and cytogenetics. The objective of this study was to survey genetic laboratories in Ontario, Canada, to determine whether different centers considered similar results as critical and thus potentially deserving of a different reporting process. Methods: An online 11-question survey was emailed to Ontario laboratory directors, and the results were analyzed. Results: The response rate was 82% (9/11). Cytogenetics and molecular genetics services were each provided by 7 of the 9 centers, with 3 centers providing biochemical/metabolic genetics services and 1 providing maternal marker serum screening services. The case type (e.g., prenatal, newborn, or expedited by the ordering physician) was one factor. Quantitative fluorescence PCR for autosomal aneuploidy, pathogenic variants in both prenatal and postnatal settings, and oncological results were considered critical cytogenetics results. Pathogenic prenatal cases, indeterminate results, and unexpected results were considered more critical for molecular genetics. Critical results were more likely to prompt a telephone call or email to the ordering physician. Conclusion: Ontario genetics laboratories tended to have similar reporting processes for critical results. Both the types of cases and the pathogenicity of the result define what values are considered critical. |
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| MeSH term(s) | Female ; Genetic Testing ; Humans ; Infant, Newborn ; Laboratories ; Pregnancy ; Prenatal Diagnosis |
| Language | English |
| Publishing date | 2021-06-04 |
| Publishing country | England |
| Document type | Journal Article |
| ISSN | 2576-9456 |
| ISSN | 2576-9456 |
| DOI | 10.1093/jalm/jfab040 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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