My mother is 94+, weighs 113 lbs., and was seen by a physician today. Based on her labs & symptoms (constantly cold, no energy, lack of appetite), he said that her bone marrow is no longer producing new blood, that her blood factory has shut down. She is ready to go , so we won t be seeing a blood specialist or asking for heroic measures but the general physician did order a blood transfusion. How long can a person survive once the body quits producing new blood? Will other organs begin to shut down as a result of the blood issue?