TLS Online TPP Program

#Question id: 12211


A 57-year-old man is admitted as an emergency for upper GI bleeding. Endoscopy reveals multiple ulcers in the duodenum. Serum gastrin levels are eight-fold higher compared to normal. Zollinger-Ellison syndrome (ZES, gastrinoma) is suspected. Administration of which of the following substances is useful in confirming the diagnosis?

#Unit 7. System Physiology – Animal
  1. Cholecystokinin (CCK)
  2. Glucose-dependent insulinotropic peptide (GLIP)
  3. Motilin
  4. Secretin