Diagnosis of Depressive Disorder

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Despite the efforts by the scientific community to find a test that would enable an accurate diagnosis to be made with objectivity, depressive disorders, at the moment, do not have any specific technique available useful for making this diagnosis.

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At the moment, none of the imaging tests that are used to “see” the brain (CT scan, scanner, magnetic resonance, radiography, SPECT, PET, functional magnetic resonance, the electroencephalogram [EEG], blood analysis—including serotonin and/or lithium—, or genetic studies using saliva or mucosa from the mouth) are useful for diagnosing depressive disorders.

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The only relevant information source for the diagnosis of this illness, is the clinical interview with the patient (and, often, with a close relative). It is also important to highlight that the use of scales and clinically structured interviews cannot ensure the infallibility of the diagnosis.

Substantiated information by:

Joana Guarch Domènech
Víctor Navarro

Published: 3 April 2018
Updated: 3 April 2018

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