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Test Code FFN Fetal Fibronectin, LAB287


Rapid fFN Assay Using Murine Monoclonal Anti-fFN Antibody

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements

Contact the laboratory to obtain special collection kit (required) and instructions.


Preferred: Cervicovaginal specimen collected on a sterile polyester tipped swab

                       provided in the Rapid fFN specimen collection and transport kit.

Stability: 8 hours at room temperature, 3 days at 2 - 8°C, and 3 months if frozen

Collection Instructions:

                      1. Specimen must be collected prior to any other internal physical exam.

                      2. Contamination of specimen with lubricants, soaps, or disinfectants may interfere with assay.

Reference Values


Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding


Useful For

The detection of fetal fibronectin (fFN) in cervicovaginal secretions is used as an aid to rapidly assess the risk of preterm delivery .