The patient meets diagnostic criteria for IBS, a disorder characterized by at least 12 weeks of chronic abdominal pain and alterations in bowel habits (including diarrhea or constipation). Patients often complain of bloating, experience exacerbations with diet changes, have sensations of incomplete evacuation, and usually have negative results on diagnostic testing. Chronic mesenteric ischemia would likely present with weight loss due to food avoidance caused by pain. Gastritis is often painless and, if pain occurs, it would be unlikely to improve with defecation. While the patient could have major depression, her stable appetite, weight, and energy level all argue against a depressive episode.
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Seminars in Medical Practice
Hospital Physician Board Review Manuals
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