Given these changes from the original case, what is your diagnosis?
What is your diagnostic explanation?
As compared to the long case, this patient is an 83-year-old woman who was brought to the ED by her daughter after she was found at home confused. The daughter is the main historian. When the patient’s daughter went to check on her this afternoon, the patient was wandering around the house and saying things that didn’t make sense. The patient began yelling at her daughter as if she didn’t know who she was. The patient was last known to be at baseline 48 hours ago when the daughter last checked on her. The patient mentioned to her daughter a couple of days ago that a friend told her taking diphenhydramine would help her get more sleep at night.
MMSE: 26/30 (missed 3 points in orientation, 1 point in recall).