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What to Expect from Genetic Testing
What to Expect
Most genetic tests are done on a blood sample (usually about 1 tablespoon of blood). Some can be done on a saliva (spit) sample. The sample is sent to a genetic testing laboratory that specializes in genetic testing for inherited cardiovascular conditions. DNA is extracted from the cells and the genetic code of certain genes is read and analyzed.
When the first person in the family is tested, the goal of the analysis is to look for mutations that can cause heart problems. This type of test usually looks at several genes that have been associated with that particular heart condition. This process takes approximately 8 weeks to complete.
When the mutation causing the heart condition in the family has been found, family members are tested specifically for that mutation. Instead of looking at all the genes associated with the condition, the genetic test just looks for that one mutation This type of testing takes 2-4 weeks.