Proceeds from website advertising help sustain Lab Tests Online. AACC is a not-for-profit organization and does not endorse non-AACC products and services.

CA 19-9

Print this article
Share this page:
Also known as: Carbohydrate Antigen 19-9; Cancer Antigen-GI; CA-GI
Formal name: Cancer Antigen 19-9

At a Glance

Why Get Tested?

To help differentiate between cancer of the pancreas and other conditions; to monitor response to pancreatic cancer treatment and to watch for recurrence

When to Get Tested?

When your doctor suspects that you have pancreatic cancer and during or following pancreatic cancer treatment

Sample Required?

A blood sample drawn from a vein in your arm

Test Preparation Needed?

None