Which lab studies, imaging studies, and procedures are used in the workup of constipation?

Updated: Mar 30, 2020
  • Author: Marc D Basson, MD, PhD, MBA, FACS; Chief Editor: BS Anand, MD  more...
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Laboratory evaluation does not play a large role in the initial assessment of the patient. Imaging studies are used to rule out acute processes that may be causing colonic ileus, to evaluate causes of chronic constipation, or to rule out sources of sepsis or intra-abdominal problems. Lower gastrointestinal (GI) endoscopy, anorectal manometry, electromyography (EMG), and balloon expulsion study may be used in the evaluation of constipation.

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