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Diagnosis relies on careful examination, exhaustive history taking, and close observation by a qualified psychiatrist.
The physician will interview family members or close associates, gathering information about the patient’s condition and history, including the following:
During the interview, any supplements or medications the patient is currently taking should be discussed.
Diagnosis may also involve assessing and identifying any
concomitant health issues that may impact a patient’s prognosis. Examples
include chemical dependence, substance abuse, dietary insufficiencies, or
pre-existing health conditions, such as pre-diabetes, hypertension, or an
abnormal blood lipid profile.
Psychiatrists diagnose schizophrenia in accordance with specific diagnostic criteria established by the American Psychiatric Association (APA). These guidelines are published in the APA’s Diagnostic and Statistical Manual of Mental Disorders (DSM). The most current version of the guidelines, DSM-IV, was last revised in 2000. It is due for a major revision, many years in the making, in early 2013. That new version, DSM-5, proposes several changes regarding the diagnosis of schizophrenic disorders (APA members recently decided to drop the Roman numeral system when designating DSM revisions). Tentative changes include dropping certain obsolete diagnostic labels, such as paranoid schizophrenia, catatonic schizophrenia, and undifferentiated schizophrenia, among others.
Written by: Dale Kiefer
Published on: Aug 16, 2011
Medically reviewed : Jennifer Monti, MD, MPH
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