- Signs that should prompt testing for Alzheimer's disease include worsening memory loss, difficulty reasoning or thinking and communicating clearly, personality changes or mood swings, disorientation and trouble performing familiar tasks.
- Be prepared to provide the doctor with a medical history (including immediate relatives), a detailed account of symptoms, and a list of all current and recent medications taken.
- Diagnosis of Alzheimer's disease begins blood work to rule out other causes of dementia like infection, nutritional deficiency or a thyroid problem.
- A doctor will often test of a patient's cognitive functions (memory, thinking, communication, etc.) in the diagnosis of Alzheimer's disease.
- Tests including MRIs or CT or PET scans provide images of the brain that can pinpoint other possible causes of the dementia like tumors, clots or hemorrhaging.








