Sorry - I meant the questionnaire was a screener for COVID-19.
I’ve learned there are a lot of conditions that cause cognitive impairment.
For Dementia, there are some pretty basic tests they do. Since dad has been diagnosed, the neurologist also does a battery of different tests with him each visit to monitor progression. Touch your nose, touch my finger, how many fingers am I holding up, do this action with your hands, push your knee up against my hand, push your other knee, etc.
This is a very helpful site.
Clinical Stages of Alzheimer’s