Which of the following diagnostic tests provides a definitive diagnosis of Alzheimer's disease?
A) Examination of the brain at autopsy
B) Computed tomography
C) Magnetic resonance imaging
D) Positron emission tomography

Question

Quizplus · Accepted Answer

AD has no definitive diagnostic test because it can be confirmed only through examination of the brain at autopsy. If the patient shows a gradual onset of progressive difficulty with memory, functional abilities, and behavior and has no evidence of other causes of these disturbances, the physician makes the diagnosis of AD. Imaging studies, including computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET), may help show the structural and functional changes in the brain associated with Alzheimer's disease.

Which of the Following Diagnostic Tests Provides a Definitive Diagnosis