My mother in law was diagnosed with Alzheimers. We both worked and were not in a position to care for her, so we got her into a San Francisco rest home that specialized in dementia, where we visited her regularly. Got so bad that she didnāt recognize her own daughter. Got a call that she was very sick and had been rushed to a hospital. Her daughter visited her and was told they had just given her a transfusion. Lo and behold she recognized my wife, talked to her, used her name, and was able to carry on a conversation. A few days later she died. In retrospect, we have to wonder if she was misdiagnosed with Alzheimers and was a victim of Pernicious Anemia.