Does anyone know of the prognosis for stage 4 renal failure in a 90 year old Alzheimer's sufferer who also has fluid around heart? She says she's not hungry but eats everything we give her. Her feet a blue, calfs light purple. She doesn't go to the toilet much. Very pale, red akin round eyes, very thin I can see the tendon at the back of her foot going up the leg to her knees. Skin dry itchy flaking off like dundruft but there is no swelling anywhere. Feet swell a couple of times previously. Should we be contacting hospice?