Muscular Distrophy Blood Work

My brother and sister in law were told by doctors that their 4 year old son Cade is showing signs of Muscular Dystrophy . There are multiple different types and still a chance he may have Fragile X Syndrome. The test is complicated blood work that involves the study of his DNA. Insurance is covering 3000 but they will be stuck with 4000 out of pocket. My sister in law will be quitting her job to take care of Cade's medical needs. Any amount you can donate will help so much! Thank you very much in advance