A patient is having a procedure that involves passing a tube through the oral pharynx into the stomach and recording barometric pressure through a transducer. This procedure most accurately describes a(n):

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This procedure involves passing a tube through the oral pharynx into the stomach and recording barometric pressure through a transducer. This is characteristic of an esophageal manometry study, which is a test that measures the pressures and function of the esophagus. Endoscopy involves the insertion of a flexible tube with a camera to visualize the digestive system, while a barium radiology study involves swallowing a liquid containing barium and taking X-rays to visualize the digestive system. The Bernstein test is a test to diagnose gastroesophageal reflux disease (GERD), and the urea breath test is a diagnostic test for Helicobacter pylori infection.

A Patient Is Having a Procedure That Involves Passing a Tube