What is Gastrin?
Gastrin is a peptide hormone produced by mucosal G cells of gastric antrum. Gastrin levels are pathologically increased in Gastrinoma, Gastric outlet obstruction and Hypo / Achlorhydria. This assay is used to investigate patients with Achlorhydria / Pernicious anemia and Zollinger- Ellison syndrome. The assay is extremely useful in the diagnosis of Gastrinoma
Preparation for Gastrin
- Do not eat or drink anything other than water for 8-12 hours before the test.