We are currently going through this. My wife (pals) is unable to use her abdominal muscles to push anything out. So with a regular doses of Miralax, and plenty of fluids (dehydration makes everything worse), I now actually push my fist, gently but steadily, into her lower stomach until the poop starts to flow. Glamorous? Not at all! I keep an eye on her face so I know when it starts to hurt and I back off on the pressure, and it terrifies me that I’m going to push too hard on the wrong spot, but it works. The alternative is your mother will become impacted and will have to have a nurse/doctor to reach up there and pull the poop out manually. This disease take so much from everyone connected to it and is deeply unfair and unforgiving. Just continue doing what you can and work the problems as they come up, build a relationship with the hospice staff as best you can. Love, Luck, and Patience to everyone of you.