Tests overview

Until 1970, peptic ulcers were diagnosed almost exclusively by using an X-ray technique known as an upper GI (gastrointestinal) series: Patients drink a barium solution to coat the upper digestive tract that makes ulcers visible to the radiologist. The test is still widely used, but additional tests make for more refined diagnosis of underlying causes, which allows more targeted treatment.

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This section contains information about:

• Upper gastrointestinal (GI) series
• Upper endoscopy or esophagoduodenoscopy
• Tests for H. pylori
• Gastric acid test
• Blood tests to screen for tumors