Brief psychotic disorder -the answer is d. this patient is showing evidence of brief psychotic disorder. this disorder is characterized by psychotic symptoms lasting >1 day, but 6 months, and there is lifelong social and occupational impairment. schizophreniform disorder is characterized by psychotic and residual symptoms lasting 16 months. in delusional disorder, which often lasts for years, there is a fixed, non-bizarre delusional system; few, if any, other thought disorders; and relatively normal social and occupational functioning. in shared psychotic disorder, a person develops the same delusion as a person with delusional disorder with whom they are in a close relationship. psychosis due to a general medical condition involves psychotic symptoms occurring as a result of physical illness.
