RT Book, Section A1 Tobias, Adam Z. A2 Tintinalli, Judith E. A2 Ma, O. John A2 Yealy, Donald M. A2 Meckler, Garth D. A2 Stapczynski, J. Stephan A2 Cline, David M. A2 Thomas, Stephen H. SR Print(0) ID 1167031345 T1 Psychoses T2 Tintinalli's Emergency Medicine: A Comprehensive Study Guide, 9e YR 2020 FD 2020 PB McGraw-Hill Education PP New York, NY SN 9781260019933 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1167031345 RD 2024/03/28 AB Psychosis has been defined as a “fundamental derangement of the mind characterized by defective or lost contact with reality.”1 The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition,2 defines psychotic disorders as those that include abnormalities in one or more of five domains: hallucinations, delusions, disorganized or abnormal motor behavior, disorganized thinking, and negative symptoms. The hallmark of these psychoses, schizophrenia, has a worldwide prevalence of 0.5% to 1%3 and affects approximately 2.4 million adults in the United States.4 Schizophrenia is considered one of the leading causes of chronic incapacity.5-7