<s>[INST] My aunt is going to be 70 in 2 weeks. She was diagnosed with E coli on the 18th of March when she was found non-responsive on her bathroom floor. She spent 3 days in ICU and showed great improvement. Then on the 28th she took a dive. today her oxygen is in the 80's her body temp is 92, she is hallucinating and non functioning. She is still on dialysis for 3 hours every other day. 6 days ago she could talk, feed herself and play cards, today she doesn't know who or where she is and doesn't recognize anyone. She can't hold on to a tissue. Do you have any idea what could cause all of this? Is it possible that it is some kind of poisoning? [/INST] Hello.His aunt  suffers Confusional Syndrome (hallucinations and delusions). The confusional syndrome is a psychic pathology that appears in 25-30% of hospitalized older than 65 years.The psychic pathology  is the result of physical pathology(complicated infection in this case).Although the situation of her aunt is very serious,if it resolves the physical pathology, will resolve the psychic pathology.I wish you good health.(In case the answer would have been useful please indicate this) </s>