Why it's done
By Mayo Clinic staffThe fetal fibronectin test is used to rule out preterm labor. It's generally not useful for women who are at low risk of preterm labor, but it can provide valuable information for women who have signs or symptoms of preterm labor or those who are at high risk of preterm labor.
If the fetal fibronectin test is positive, your health care provider may take steps to address premature birth — such as prescribing medication to enhance the baby's lung maturity. If the fetal fibronectin test is negative, you can be assured that your pregnancy is likely to continue for at least another week.
- Lockwood CJ. Fetal fibronectin for prediction of preterm labor and delivery. http://www.uptodate.com/home/index.html. Accessed March 8, 2010.
- Lockwood CJ. Overview of preterm labor and delivery. http://www.uptodate.com/home/index.html. Accessed March 8, 2010.
- Routine tests in pregnancy. American Congress of Obstetricians and Gynecologists. http://www.acog.org/publications/patient_education/bp133.cfm. Accessed March 8, 2010.
- Preterm labor. American Congress of Obstetricians and Gynecologists. http://www.acog.org/publications/patient_education/bp087.cfm. Accessed March 8, 2010.
- Sanchez-Ramos L, et al. Fetal fibronectin as a short-term predictor of preterm birth in symptomatic patients: A meta-analysis. Obstetrics and Gynecology. 2009;114:631.
- Murry MM (expert opinion). Mayo Clinic, Rochester, Minn. March 24, 2010.
- Harms RW (expert opinion). Mayo Clinic, Rochester, Minn. March 30, 2010.

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