Genetic Testing for Huntington's Disease

Can You Test for Huntington's Disease?

It is possible to test for the extra repetitions of the code that cause Huntington's disease.^[5] Blood is collected and the DNA is analyzed for the abnormal code. Presence of the abnormal code means you will eventually develop the disease. Consider carefully whether you want to know this information before taking the test. If you are interested in the test, you should discuss it with a genetic counselor first. It is also possible to test a fetus for the presence of the faulty gene via amniocentesis or chorionic villus sampling (CVS).