Swallowing during a gastroscopy does not usually affect the results.
Gastroscopy is a test in which a thin, flexible tube with a camera is inserted into the stomach to observe the state of the mucous membranes in the bulbous and descending portions of the esophagus, stomach, and duodenum, as well as the presence of abnormal neoplastic organisms. Patients are usually required to fast for eight hours prior to the test.
As the tube will pass through the epiglottis during the examination, some patients with sensitive pharyngeal reflexes may experience nausea and other discomforts, and may experience an increase in saliva secretion, resulting in swallowing, which are normal physiological reactions.
In addition, during the operation, the doctor will also use a small amount of saline to rinse the gastroscope lens, so it will not affect the results of gastroscopy.