• Veronica Tucci, Kaylin Siever, Anu Matorin, and Nidal Moukaddam.
• Section of Emergency Medicine, Baylor College of Medicine, 1504 Taub Loop, Houston, TX 77030, USA. Electronic address: Tucci@bcm.edu.
• Emerg. Med. Clin. North Am. 2015 Nov 1;33(4):721-37.

AbstractPatients presenting with behavior or psychiatric complaints may have an underlying medical disorder causing or worsening their symptoms. Misdiagnosing a medical illness as psychiatric can lead to increased morbidity and mortality. A thorough history and physical examination, including mental status, are important to identify these causes and guide further testing. Laboratory and ancillary testing should be guided by what is indicated based on clinical assessment. Certain patient populations and signs and symptoms have a higher association with organic causes of behavioral complaints. Many medical problems can present with or exacerbate psychiatric symptoms, and a thorough medical assessment is imperative.Copyright © 2015 Elsevier Inc. All rights reserved.

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