Your throat may feel swollen, making swallowing seem difficult. The endoscope, a flexible instrument, is passed through your mouth. The lining of the esophagus, stomach and upper duodenum are viewed, photographed and studied. Biopsies are made, if necessary. Endoscope is removed from your mouth.
Biopsy tissue is sent to the laboratory for analysis.
After the test Immediate post-test care Your pulse, blood pressure, breathing status and temperature are checked at regular intervals until they are stable. Do not eat or drink anything until your gag reflex returns, usually 2 hours. After your gag reflex returns, you may drink fluids and eat a light meal. Activity after test You may burp some air and have a sore throat for 3 or 4 days. Use throat lozenges and gargle to ease your discomfort.