A Barium Swallow is a medical imaging test used to examine the upper gastrointestinal (GI) tract, including the esophagus and stomach. During the procedure, a patient drinks a liquid containing barium, a contrast material that makes the organs visible on X-rays. This helps doctors identify issues such as blockages, tumors, or inflammation. The test is typically performed in a radiology department and may involve a series of X-ray images taken while the patient swallows the barium. It is a safe procedure, but patients may experience temporary discomfort or a chalky taste from the barium.