The study is used most frequently to evaluate patients who have symptoms suggestive of decreased, delayed, or rapid gastric emptying, and no visible abnormality to explain their symptoms.
A gastric emptying scan (GES) is an x-ray exam using special radioactive material that allows physicians to identify abnormalities related to emptying of the stomach.
A gastric emptying scan (GES) is an x-ray exam using special radioactive material that allows physicians to identify abnormalities related to emptying of the stomach.
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A gastric emptying scan (GES) is an x-ray exam using special radioactive material that allows physicians to identify abnormalities related to emptying of the stomach.
In a gastric emptying scan, abnormalities may include delayed gastric emptying (gastroparesis) or accelerated gastric emptying. Delayed emptying is characterized by prolonged retention of food in the stomach, often indicating conditions like diabetes or gastric outlet obstruction. Accelerated emptying may result from conditions like dumping syndrome, where food moves too quickly into the small intestine. These abnormalities can be assessed by measuring the percentage of food remaining in the stomach at set intervals post-ingestion.
The value is expressed as a percentage of emptying over a period of time. For a technetium-filled egg sandwich, normal emptying is 78 minutes for half the material to leave the stomach, with a variation of 11 minutes.
GES scan studies that show emptying of the stomach in a longer than accepted period is abnormal. Severity of test results and symptoms do not always match; therefore, the physician must carefully interpret these findings. Diabetic.
During the study, patients are asked to ingest an egg sandwich containing a radioactive substance (for example, technetium) that can be followed by a special camera. The emptying of the material from the stomach is then followed.
The average gastric emptying time in dogs is typically around 2-6 hours.
The following factors decrease gastric emptying time:HungerAnxietyBody position of lying on the right sideHyperthryoidismIntake of fluids and antiemetic drugs
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Reduce gastric acid secretion. Also causes faster emptying of liquids from the stomach, but delayed emptying of solids from the stomach. Source: medical doctor