Having worked in the medical profession for 8 years now I still run into this all the time. 90 year old grandpa, demented, wheel chair bound, cant speak, has coded (had his heart stop) twice. His pressures are in the toilet, he'll never be any better than when he came in, most likely he'll be worse. If he survives they'll send him back to the nursing home. Clearly the man is ready to die...but some families wont. let. go. I get it, you love this person but when do you stop? It's heart breaking and this is why it's so important to have your medical wishes ON RECORD. So when you cant speak for yourself somebody (health care power of attorney, surrogate, etc) can honor your wishes.