How is Alzheimer's disease diagnosed in humans?
A) Through exclusion-ruling out all other causes of dementia-because the characteristic beta-amyloid plaques can only be assessed in a postmortem examination of brain tissue.
B) Through a PET scan to see how the brain and its tissues are working because Alzheimer's diseased brains have a characteristic type of functioning.
C) Through an MRI or CT scan to observe the structure of the brain and identify whether the characteristic plaques and tangles are present.
D) Through a series of neurological tests that indicate symptoms of Alzheimer's disease exclusively (not present in other forms of dementia).

Question

Quizplus · Accepted Answer

Alzheimer's disease is primarily diagnosed through exclusion, ruling out other causes of dementia, as definitive diagnosis requires postmortem examination of brain tissue to identify beta-amyloid plaques.

How Is Alzheimer's Disease Diagnosed in Humans