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.


Print this article
Share this page:
Formal name: Fetal Fibronectin

At a Glance

Why Get Tested?

To help evaluate a pregnant woman's risk of preterm delivery

When to Get Tested?

When you are 22 to 35 weeks pregnant and are having symptoms of premature labor; sometimes if you are at high risk, such as if you have had a previous preterm delivery or have a short cervix

Sample Required?

A cervical or vaginal fluid sample

Test Preparation Needed?

None, but to reduce the chance of a false-positive result, avoid sexual intercourse for 24 hours prior to sample collection and collection should be performed before a physical exam.