Visual examination of the esophagus, stomach, and duodenum?

• A. Esophagogastroduodenoscopy
• B. Esophagoscopy
• C. Gastroscopy
• D. Endoscopy

Answer: (A)

This question centers on the term for visually examining the upper digestive tract. The complete procedure that looks at the esophagus, stomach, and duodenum is esophagogastroduodenoscopy, often abbreviated as EGD. It explicitly names all three segments: esophagus (eso-), stomach (gastro-), and duodenum (duodeno-), using a flexible endoscope to inspect mucosa and often obtain biopsies. The other terms are more limited or generic: esophagoscopy looks only at the esophagus, gastroscopy focuses on the stomach, and endoscopy is a broad umbrella term for endoscopic examination that doesn’t specify which organs are examined. So the best choice is the esophagogastroduodenoscopy.