Upper endoscopy primarily examines which regions of the GI tract?

Upper endoscopy primarily examines which regions of the GI tract?

• A. Esophagus, stomach, proximal duodenum
• B. Colon and ileum
• C. Ileocecal region only
• D. Distal stomach and jejunum

Answer: (A)

Upper endoscopy evaluates the mucosa of the upper GI tract, specifically from the esophagus through the stomach and into the proximal duodenum. That’s why the regions examined are the esophagus, stomach, and proximal duodenum—the standard scope reaches these areas in a typical procedure. The colon and ileum belong to the lower GI tract and are assessed with colonoscopy. The ileocecal region is part of the colon, not reached by a standard upper endoscope. The distal stomach and jejunum lie beyond the reach of a routine upper endoscopy, except with specialized deep-enteroscopy techniques. So the option listing the esophagus, stomach, and proximal duodenum best matches what upper endoscopy examines.

Upper endoscopy evaluates the mucosa of the upper GI tract, specifically from the esophagus through the stomach and into the proximal duodenum. That’s why the regions examined are the esophagus, stomach, and proximal duodenum—the standard scope reaches these areas in a typical procedure. The colon and ileum belong to the lower GI tract and are assessed with colonoscopy. The ileocecal region is part of the colon, not reached by a standard upper endoscope. The distal stomach and jejunum lie beyond the reach of a routine upper endoscopy, except with specialized deep-enteroscopy techniques. So the option listing the esophagus, stomach, and proximal duodenum best matches what upper endoscopy examines.