C. Ann, don't panic. Get something to eat, soup, crackers something. Then go to sleep.
I would call that great SIL and talk with him about it. He won't leave you in the lurch to deal with this alone.
The hospital won't or shouldn't send him home until they are sure that you know what to do and how to do it.
I wish I could help you with your furniture.
C. Ann, you can handle the responsibilty of helping him. You have taken care of so many other things and people, you can do this.
It's scary and confusing right now, but you will be able to handle it.
Have the doctor not only explain to you every step, but make sure to have a written copy to take home with you.
Take a deep breath, get some sleep, and know that you are a capable person.
{{{hugs}}} and prayers for you and your dh.
I wanted to add, that you are also smart enough to let them know if you can't handle something. Some other arrangements would have to be made.
{{hugs}} again.