Mental Health Book

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Schizophrenia Diagnosis

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  1. Symptoms
    1. Delusions (often bizarre)
    2. Hallucinations (not fantasy)
    3. Disorganized Speech
      1. Frequent derailment or incoherence
      2. Conceptional disorganization
    4. Bizarre disorganized or catatonic behavior
      1. Delusions
      2. Excitement
      3. Grandiosity
      4. Suspiciousness or persecution
      5. Hostility
    5. Negative Symptoms
      1. See Negative Symptoms in Psychosis
  2. Criteria
    1. Symptoms
      1. Two symptoms or more from list above
        1. Each symptom present at least one month
        2. Symptoms present less than one month if treated
      2. One symptom if significant delusion or hallucination
        1. Bizarre delusions
        2. Two or more voices conversing with one another
    2. Impaired social or occupational function
    3. Continuous signs and symptoms for at least 6 months
    4. Not due to secondary cause
      1. Not due to schizoaffective disorder
      2. Not due to Mood Disorder
      3. Not due to Substance Abuse
      4. Not due to underlying medical illness
      5. Not due to pervasive developmental disorder
      6. Autism must be with delusions or hallucinations
  3. References
    1. (2000) DSM IV, APA, p. 297-343
    2. Freedman (2003) N Engl J Med 349:1738
    3. Schultz (2007) Am Fam Physician 75:1821

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