According to the American College of Gastroenterology, scintigraphy is the gold standard for diagnosis of gastroparesis. This test was performed on Mrs. Williams. Explain this test and discuss how her results confirm her diagnosis
Are there other diagnostic tests that could be used?
• The gold standard for diagnosis is the scintigraphic gastric emptying test. It involved the ingestion of a standardized meal of 4 oz. of liquid egg white, two slices of white bread, strawberry jam, water, and technetium-99m sulfur colloid (0.5-1 mCi).
• Since Mrs. Williams' test results show higher gastric retention of her meal at 1 hour (95%) and 2 hours (85%) compared to the normal ranges (30-90% and < 60%, respectively), gastroparesis can be diagnosed.
• Other diagnostic tests include an upper gastrointestinal endoscopy, CT and MRI enterographies, upper gastrointestinal series (X-rays of barium-containing liquid), and breath tests.
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