mum not having chemo

Hi, my mum was diagnosed with stomach cancer about two weeks ago, we have since found out it has spread to her liver and lungs. The consultant has been unable to steady mums liver function so she will not be undergoing chemotherapy. He also said that she had just weeks left. She had another scan yesterday and the radiologist told us that it has spread to her kidney now. He said it is multiplying quite quickly. Dad seems to think that Mum will be able to come home. I look at her in the hospital bed and I cannot imagine her being strong enough to leave it. Has anyone any experience of advice about what to expect if we can take her home ? Is it safe ? I am scared that it will be a strain on my Dad. I also wonder just how long she will battle on for, it seems inhumane for her to be laid on the bed all day just drugged up.  Thanks for any advice  Jo x