Gastrointestinal Physiology Laboratory

The Gastrointestinal Physiology Laboratory performs specialized tests, including:

• esophageal motility to determine how well the esophagus functions
• ambulatory pH studies to assist in diagnosing gastroesophageal reflux disease
• anorectal manometry to assess anal sphincter and rectal function

Also offered are breath tests used to diagnose the presence of ulcer-causing bacteria in the stomach, bacterial overgrowth in the small intestine, lactose intolerance and chemical analysis of diarrheal specimens.