My mother has to have everything done for her. She weighs only about 70 pounds. We feed her with a dropper and only liquids. She is in hospice and had previously left a living will with DNR. Since she is incoherent should we stop feeding her? She doesn't eat much and many times refuses food but not always. Are we going against her wishes by continuing to feed her? Is it legal should we decide to stop? Medical personnel are rather surprised she is still alive but we take very good care of her. What is appropriate?