Genetic testing can be used to find out whether a person is carrying a specific altered gene (genetic mutation) that causes a particular medical condition. Genetic testing usually involves having a sample of your blood or tissue taken. The sample will contain cells containing your DNA.
There are some NHS genetic tests available for Parkinson’s genes, such as the LRRK2 gene. This link has the information about Parkinson’s genes available as NHS genetic tests. Please discuss things with your consultant if you would like to explore NHS genetic testing.