What is the fetal fibronectin test?
The fetal fibronecin test involves obtaining a sample of vaginal fluid on a cotton swab during a pelvic exam. This sample will be examined for the presence of fetal fibronectin. Fetal fibronectin is not usually found in the vagina between 22 and 3 weeks gestation. If it’s present, it could be a warning sign of preterm birth within 7-14 days. False positive tests do occur.
