# Gastrin

> This test measures the level of gastrin, a hormone that signals your stomach to produce acid for digestion. It helps doctors investigate the cause of severe or recurring stomach ulcers and symptoms of excessive stomach acid. This measurement is often used to screen for gastrinomas, which are rare tumors that release too much of this hormone. Because high gastrin levels can also result from medications or other health issues, this test does not diagnose a tumor by itself.

- Labcorp code: 004390
- Category: [Cancer Detection](https://app.picardo.health/labs/tests/cancer-detection.md)
- Price: shown at checkout, before payment.
- Blood draw: free at a Labcorp location, or $75.00 at home.
- Order link: https://app.picardo.health/labs/order?tests=004390&ref=assistant

## About ordering

A licensed physician reviews every order before any test is run, and results arrive in the person's Picardo account. Ordering is open to adults 18 and over in the US, except New York, New Jersey, Rhode Island, Pennsylvania, Maryland, Massachusetts, Hawaii and Maine. General health information, not medical advice.