Hi, Thanks for asking. Based on your query, my opinion is as follows. 1. Yes, forgetfulness - impaired ability to recall previous learned information or to learn new information is one of the earliest sign of Alzheimer s disease. 2. However, other factors like language disturbance, failure to recognize or identify objects or inability to carry out motor activities requires evaluation. 3. Mini-mental examination or recall test can confirm. 4. She will require cholinesterase inhibitors like donezepil or rivastigmine. Non-pharmacological therapy will also be necessary. Meet your neurologist for diagnosis and prescription. Hope it helps. Any further queries, happy to help again.