Diagnosis

Your doctor may use some of the following methods to determine if you have dumping syndrome.

• Medical history and evaluation. Your doctor can often diagnose dumping syndrome by taking a medical history, particularly if you've had stomach surgery, and evaluating your signs and symptoms.
• Blood sugar test. Because low blood sugar is sometimes associated with dumping syndrome, your doctor may order a test (oral glucose tolerance) to measure your blood sugar level at the peak time of your symptoms to help confirm the diagnosis.
• Gastric emptying test. A radioactive material is added to food to measure how quickly food moves through your stomach.