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  • Psychosis refers to an abnormal condition of the mind, and is a generic psychiatric term for a mental state often described as involving a "loss of contact with reality". People suffering from psychosis are described as psychotic. Psychosis, especially schizophrenia, may be viewed by many as a chronic disorder without much hope for recovery. However, two studies by the World Health Organization showed that as many as two thirds of patients initially diagnosed with schizophrenia in developing countries were recovered after 5 years. The countries with least use of medication had the best recovery rates. In industrialized countries, about one third of psychotic patients recover. Psychosis is a diagnosis of exclusion. That is, a new-onset episode of psychosis is not considered a symptom of a psychiatric disorder until other relevant and known causes of psychosis are properly excluded. Medical and biological laboratory tests should exclude central nervous system diseases and injuries, diseases and injuries of other organs, psychoactive substances, toxins, and prescribed medications as causes of symptoms of psychosis before any psychiatric illness can be diagnosed.

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