Thanks to everyone..Kage you are a great man!
Update is this they still have no idea what is going on. They took 4 what looked like tabasco bottles of blood to do cultures. Seems to be looking better but still has a low grade fever with the somewhat absent mindedness.
Thanks so much guys for all your support. It's starting to be that time in life where I as the oldest son have to think about my parents health and well being and it's not the most comfortable situation but hey everyone has to!