Hi. my dad is 91, has prostate cancer with a psa of 116, and stage 4 renal failure. Until the recent change in his kidney function, Daddy had been very active. Some figure that is supposed to be 1.5 or so, went to 3.1 and now 3.9. Is there any positive prognosis? His local doctor told him to go home and say his goodbyes and call hospice. Is there more to consider?