@gl66 I agree with @grammato3 that a thorough evaluation will provide you with more information. A neuropsychologist (Ph.D. And licensed in psychology) does this type of testing. However, neuropsychologists are often fully booked and sometimes it is a long wait for an appointment.

In what region, state, or province do you live? There are specialized Memory Diagnostic Centers all over North America. Many times this Memory Diagnostic Centers are found within an academic medical center at a university. Here are some examples below.

Wisconsin Alzheimer Institute Affiliated Dementia Diagnostic Clinics:

— https://wai.wisc.edu/clinic-network/

Mayo Clinic Affiliated Memory Care Clinic in Eau Claire, Wisconsin:

— https://www.mayoclinichealthsystem.org/locations/eau-claire/services-and-treatments/psychiatry-and-psychology/memory-care-clinic

University of Michigan Cognitive Disorders Program:

— https://www.uofmhealth.org/conditions-treatments/brain-neurological-conditions/dementia-and-alzheimers

The above are example of multidisciplinary clinics. Might you and your wife be interested in this kind of evaluation?