Gut Instincts: A Clinician's Handbook of Digestive and Liver Diseases

Eric Esrailian, MD, MPH

Chapter 1: Nausea And Vomiting (continued)

Terri Getzug, MD

Nausea and vomiting are common and distressing symptoms with a number of underlying causes. Nausea may or may not be accompanied by vomiting or other symptoms. Vomiting is the forceful expulsion of gastric contents through the mouth. Vomiting may also occur in the absence of nausea in some settings. Regurgitation is passive and relates to the return of esophageal contents into the mouth. The differential diagnosis is extensive and includes a broad range of conditions from within and outside the gut, as well as from drugs and circulating toxins. Vomiting is coordinated by the brainstem and is…