Problem: A nurse practitioner is managing an 87 y/o female with Alzheimer's dementia in their clinic. 6 months after initiating a cholinesterase inhibitor, the nurse practitioner does not see any type of response, despite maximizing the dosing. Family reports no behavioral issues such as agitation or combatitiveness. What would be an appropriate step with managing this patient? Add quetiapine 25mg po nightly Adding a long acting benzodiazepine as an adjunct agent Adding memantine to treatment regimen Continuing treatment for another 6 weeks and scheduling follow up to assess improvement