What diagnosis activities are required to determine what type of dementia a person has?

Is it reversible? Tests consider reversible bs irreversible causes of dementia. Look at thyroid function tests, B12 levels, RPR to rule out syphillis. These are metabolic causes.Then ctscan or MRI to r:/o tumor, multiinfarct dementia(mid).If mid, ekg to r/o atrial fibrillation. Newer tests include pet scans and other new x-ray imaging studied. It is common to find small vessel ischemia.
Dementia. Thorough exam, neurological workup, mini mental status exam are first steps.