Is genetic testing available for parkinson's disease?

Yes,but: There are several gene mutations that have been detected in pd.Many are very limited in familial clusters & only 10% of pd is thought to be determined by such mutations.The lrrk2 gene is the most common anomaly in late onset pd & detection in an affected patient can be used to as a marker for close family screening. See the nih report: www.Ncbi.Nlm.Nih.Gov/pmc/articles/pmc3280083.