Sorry to hear about your mom, I hope she heals quickly.

POA is easy, as long as she agrees with it. As for the Revocable Trust, I recommend getting a lawyer involved or seek the advice of a Fiduciary. I have recently gone through, and am still dealing with, a trust that was sit up wrong, it a pain in the ass. You don't want to be the one filling all the documents to the appropriate companies to change the name to the Trust.

Other things to think about:
Set up a bank account in the name of the Trust, with you on it as well. If you are not on her other bank accounts, get that done ASAP.
All life insurance policies/401 K/ retirement accounts/ Etc, will need to be changed to the Trust as beneficiary (ask me how I know this) if not you are in for a long battle and lots of paper work.
Do a quick claim deed on all her properties.
Get a health directive, and file it with her doctors and hospitals and care facilities.

There are a million little other things as well.