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cascade genetic testing

(kas-KADE jeh-NEH-tik TES-ting)
The process of extending genetic testing to individuals at risk within a family for inheriting a pathogenic variant previously identified in a biologic relative. This process is repeated as more pathogenic variant carriers are identified within the family. Cascade genetic testing is sometimes referred to as cascade screening, although cascade genetic testing is the preferred term. Also called cascade testing.
Search NCI's Dictionary of Genetics Terms