A 25-year-old female presents with episodes of bizarre behavior, memory lapse, and unconsciousness. She also demonstrated previously episodes of extreme hunger, sweating, and tachycardia. During one of these episodes, her blood sugar was tested and was found to be 40 mg/dL. Which of the following would most appropriately indicate a diagnosis of insulinoma?
Demonstration of insulin antibodies in blood Abnormal glucagon level CT of the pancreas showing a mass Hypoglycemia during a symptomatic episode with relief of symptoms by intravenous glucose