my husband has documented Alzheimer's verified by PET scan. He takes Namenda and Exelon patches. He is probably in stage 7 but is still continent and sleeps at night. Could he also have vascular causes and Parkinson's. He has long hx of heart dx . He has some tremors, shuffles, coughs hard after eating and other times. After death, I plan to have an autopsy to find out any other etiologies involved. Can it tell me. Thanks ;you, Patsy