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Diagnosing Alzheimer’s disease in clinical practice 

Diagnosing Alzheimer’s disease in clinical practice
Chapter:
Diagnosing Alzheimer’s disease in clinical practice
Author(s):

Gunhild Waldemar

DOI:
10.1093/med/9780198779803.003.0006
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date: 15 December 2019

The diagnostic evaluation in a patient with cognitive impairment suspected of having Alzheimer’s disease (AD) should include investigations aimed at 1) confirming and characterizing the cognitive impairment using cognitive tests with particular attention to typical (episodic memory impairment) and atypical presentations of AD; 2) checking the diagnostic criteria for AD and considering biomarkers to document AD pathology; and 3) differential diagnosis: ruling out other conditions which could cause cognitive impairment. With the advent of CSF and imaging biomarkers for AD, it may be possible to establish an early specific diagnosis, or to confirm an increased risk of progressing to AD dementia, in patients with mild cognitive symptoms. In such cases pre-biomarker counselling and patient consent is essential.

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