I have a male senior friend (87) who has chronic and severe UTI. He is also hemiplegic from a stroke. Recently, he became incoherent and agitated, so bad that I called 911 to take him to the ER. They determined that he was only severely dehydrated and was kept over-night for observation. Ten days later he passed-out, and again I called 911 to take him to the ER. This time they admitted him for UTI. I believe that they missed diagnosesed the first time, and claims should have handled as a hospital readmission.
Another previous time, I knew he an UTI, I took him to the ER and they treated him with an IV antibiotic. At 8pm at night they released him to go home! I thought that was a bad idea and pleaded with the Doctor three times to keep him for observation. The doctor said no because vitals were good. I gave up, took him home, and the next morning he awoke with a fever. I call 911 to take him back to the ER, and he was re-admitted for the UTI.