You just be there.
It was mine too.
I don't remember needing anything.
If he's having his colon removed like I did it's a jolt. That's for sure. Slippers is all I can think of so he can walk if they let him. Personally I didn't need anything right off the bat but morphine.
If he is having it removed he will be hooked up to bags for both. So he won't be able to get up anyway. That's how mine was. I didn't come out with an appliance on after surgery. I was hooked to a large bag on a cart. Along with miscellaneous other tubes and lines.
Richard.