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.

Immunoreactive Trypsinogen

Print this article
Share this page:
Also known as: Trypsin-like Immunoreactivity; Immunoreactive Trypsin; Serum Trypsinogen; IRT
Formal name: Immunoreactive Trypsinogen

Board approvedAll content on Lab Tests Online has been reviewed and approved by our Editorial Review Board.

At a Glance

Why Get Tested?

To screen for cystic fibrosis (CF); sometimes to detect pancreatitis

When to Get Tested?

As part of a newborn screening test; sometimes when you have symptoms of pancreatitis, such as severe abdominal pain that may be persistent or intermittent, nausea, vomiting, weakness, and jaundice

Sample Required?

A blood sample drawn from an infant's heel, a spot of blood that is put onto filter paper, or a blood sample drawn from a vein in your arm

Test Preparation Needed?

None