She could have Alzhiemer's, or she could have something else. If it is not treatable or curable, they may have to put her in a facility.

My parents just got into the retirement age, they do not want to be put in a home when their time comes. Frankly I don't blame them, the way I've seen some of the way those places are run. But the only one I would trust is the one my wife works as an LPN in.

Get to know the facility and walk around it first before putting her in there. Check the state certification of the place, they all have to be certified and pass.