Three months ago, my mom was admitted to the ICU for acute kidney failure. Since that time she has suffered with an extreme case of delirium. Before entering the ICU, my mother's mind was very sharp but she was beginning to become a little forgetful. Now, after three months, she resides at a rehab facility. The doctor and staff are treating her as if she has full fledged Alzheimer's or Dementia. I have been a caregiver for my mom for over three years now and I know her inside out. I can recognize when she gets a UTI or becomes delirious. I do not agree with the medical staff at the rehab center where my mother currently resides - especially since she was recently put on a drug (scopolamine) that is notorious for inducing delirium in elderly patients. So, can Alzheimer's or Dementia progress from being slightly forgetful to talking about weird things that don't exist or make any sense over the course of three months? I know Alzheimer's progresses slowly. But what is considered slowly? One month, six months, a year, two years, ten years?