A 65-year-old woman presents with memory loss difficulty organizing thoughts,
and profound disorientation at times. These symptoms have developed gradually over the
past 6 months. She denies any recent illnesses , infections, or changes in medication.On
physical exam, she appears alert and oriented but demonstrates significant impairments in
short-term memory. Given the DSM-5 criteria, which of the following would best explain
this patient's symptoms?
Major neurocognitive disorder due to Alzheimer's disease
Delirium due to an underlying infection
Minor neurocognitive disorder due to Alzheimer's disease
Major neurocognitive disorder due to vascular disease