RT Book, Section A1 Mills, Jason C. A1 Stappenbeck, Thaddeus S. A2 Hammer, Gary D. A2 McPhee, Stephen J. SR Print(0) ID 1100860727 T1 Gastrointestinal Disease T2 Pathophysiology of Disease: An Introduction to Clinical Medicine, 7e YR 2013 FD 2013 PB McGraw-Hill Education PP New York, NY SN 978-0-07-180600-8 LK accessmedicine.mhmedical.com/content.aspx?aid=1100860727 RD 2024/03/29 AB Gastrointestinal (GI) diseases most often present with one or more of four common classes of symptoms and signs: (1) abdominal or chest pain; (2) altered ingestion of food (eg, resulting from nausea, vomiting, dysphagia [difficulty swallowing], odynophagia [painful swallowing], or anorexia [lack of appetite]); (3) altered bowel movements (ie, diarrhea or constipation); and (4) GI tract bleeding, either occurring without warning or preceded by one or more of the foregoing (Table 13–1). However, not all cases of a particular GI disease present in the same way. For example, peptic ulcer disease, although typically accompanied by abdominal pain, may be painless.