Mental Health Book

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Psychosis Differential Diagnosis

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  1. See Also
    1. Psychosis
    2. Drug Induced Psychosis
  2. Differential Diagnosis: Psychiatric Conditions
    1. Schizophrenia
    2. Schizophreniform Disorder
      1. Psychotic for >1 month and <6 months
    3. Schizoaffective
      1. Psychosis for 1 month with concurrent Mood Disorder
      2. No Alcohol Dependence
    4. Delusional disorder
      1. Delusions without hallucinations for 1 month
      2. No Alcohol Dependence
    5. Brief psychotic disorder
      1. Psychotic episode <1 month
    6. Shared psychotic disorder
      1. Folie a deux
    7. Major Depression
      1. Psychotic depression
      2. Drug resistant depression
    8. Borderline Personality disorder
  3. Differential Diagnosis: Organic Conditions
    1. Drug Induced Psychosis (medications or Substance Abuse)
    2. Electrolyte disturbance
      1. Hyponatremia
      2. Hypercalcemia
      3. Hypocalcemia
      4. Hypomagnesemia
    3. Hypoglycemia
    4. Sepsis
    5. Hepatic Encephalopathy
    6. Delirium
    7. Dementia
    8. Tic Disorder
    9. Huntington's Chorea
  4. 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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