A patient is being evaluated for Alzheimer's disease (AD). The nurse explains to the patient's adult children that
a. the most important risk factor for AD is a family history of the disorder.
b. new drugs have been shown to reverse AD dramatically in some patients.
c. a diagnosis of AD is made only after other causes of dementia are ruled out.
d. the presence of brain atrophy detected by magnetic resonance imaging (MRI) will confirm the diagnosis of AD.
ANS: C
The diagnosis of AD is usually one of exclusion. Age is the most important risk factor for development of AD. Drugs may slow the deterioration but do not reverse the effects of AD. Brain atrophy is a common finding in AD, but it can occur in other diseases as well and does not confirm a diagnosis of AD.
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