Definitions for "Presymptomatic testing"
A form of genetic testing which looks for the presence of a mutation in a gene prior to an individual developing any symptoms of the disorder eg. testing for breast cancer. The detection of a specific mutation does not necessarily mean the individual will definitely develop the disorder.
A test for a genetic disease before it becomes apparent but which may develop if affected by certain factors.
Genetic testing carried out to detect a particular gene mutation before the onset of symptoms, offered to those at risk of a disorder, e.g. Huntington disease.