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How is dementia diagnosed?

Dementia is not diagnosed by a single test. To help make an accurate assessment, a detailed history is taken and cognitive testing is undertaken to measure and evaluate memory, concentration, problem-solving and language skills. Laboratory tests may be carried out to determine if the cause of dementia is a nutritional deficiency such as low levels of vitamin B12, or due to abnormal levels of circulating thyroid hormone.

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About this article

Author: Dr Nikki Wallis PhD, BSc
First answered: 27 Nov 2014
Last reviewed: 14 May 2019
Rating: 4.6 out of 5
Votes: 1080 (Click smiley face below to rate)
Category: Alzheimer’s disease


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