Gastrin Test

A Gastrin Test is a medical diagnostic procedure used to measure the levels of gastrin, a hormone produced by the stomach. Gastrin plays a crucial role in regulating the production of stomach acid. This test is typically ordered to assess gastric function and investigate conditions related to excessive or inadequate stomach acid secretion. It is a valuable tool in diagnosing disorders like Zollinger-Ellison syndrome, peptic ulcers, and gastrinomas.

Gastrin testing is necessary to evaluate stomach acid production and diagnose related disorders. High gastrin levels may indicate conditions like Zollinger-Ellison syndrome, which leads to excessive acid secretion, while low levels could be a sign of pernicious anemia or atrophic gastritis, causing reduced acid production. Accurate diagnosis helps guide appropriate treatment and management strategies.

The Gastrin Test involves drawing a blood sample, usually from a vein in the arm. Fasting for a few hours prior to the test may be required. The collected sample is then sent to a laboratory for analysis. The levels of gastrin are measured, and results are typically available within a few days. In some cases, a stimulated gastrin test, where the patient is given a meal or a hormone to trigger gastrin release, may be performed.

Abnormal results may indicate an underlying medical condition. Elevated gastrin levels could suggest Zollinger-Ellison syndrome, hypercalcemia, or chronic kidney disease. Low levels may indicate pernicious anemia or conditions that reduce acid secretion. Further tests and clinical evaluation are often necessary to confirm a diagnosis and determine the appropriate treatment plan.