Testing for Alzheimer's Disease

There are several methods available when testing for Alzheimer’s disease; however, it is important to note that the only 100% test must be done post-mortem (after death).  Although, experts claim to have an 85% accuracy rate when testing for Alzheimer’s disease.

Testing for Alzheimer's Disease

Testing for Alzheimer’s disease is typically done on the basis of medical and family history, and observation (both physical and mental) over a series of weeks or months.  Physical tests include blood tests and neuroimaging; however, these are done primarily to rule out other conditions.  Interviews with family members, close friends or caregivers are vital when it comes to initial assessment.  Often the patient will focus on minimizing their symptoms while being tested or simply be having a “good day”. 

If a doctor suspects Alzheimer’s, or another form of dementia, further confirmation can come from a “mini mental state exam” – a brief, 30-point questionnaire designed to assess cognition.  The test covers arithmetic, memory and orientation, for example, the final question asks patients to copy two interlocking pentagons.  This type of testing for Alzheimer’s disease is only completed once clinical depression has been ruled out.  Other psychological testing can evaluate abstract thinking, and visuospatial abilities.  Another important note when using these examinations while testing for Alzheimer’s disease is that individuals with higher IQ’s (greater than 120 points) should be subjected to an adjusted procedure.  

While testing for Azheimer’s disease will, unfortunately, not assist in preventing the onset of the condition, it can possibly help delay the progression and give you and your family time to plan for the future.