Understanding Your Test Results

A fetal fibronectin test predicts your risk of going into labor in the near future (the next 2 weeks). When it says you’re not going to deliver, the fetal fibronectin test is highly reliable (>99%).1,2

Your doctor or nurse/midwife uses your fetal fibronectin test results as one important clue within a larger picture. In this section, learn a bit about how he or she does this.


  1. Peaceman AM, Andrews WW, Thorp JM, et al. Fetal fibronectin as a predictor of preterm birth in patients with symptoms: a multicenter trial. Am J Obstet Gynecol. 1997;177:13-18.
  2. Rapid fFN for the TliIQ System [package insert]. AW-04196-002, Rev. 003. Marlborough, MA: Hologic, Inc.; 2015.

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