My Grandpa had a severe kidney infection that was borderline septic. Was hospitalized for a week and sent to a rehab for a few weeks. Once he got admitted to the hospital his memory started to get foggy. They said this happens in elderly when they get UTIs and infections. He couldn’t tell us the year. It’s been almost 4 weeks and his memory is still shot and his infection has cleared up. They started him on a memory drug, memantine. He has forgotten how to dial numbers, his favorite channels, and some short and long term memory stuff. CT scan was clear of strokes... they told us this would go away but I’m starting to wonder. Anyone go through this? When will I get my grandpa back?? Never been diagnosed with Alzheimer’s or dementia. Was literally fine the day before, this is all sudden.