Quantitative fetal fibronectin screening in asymptomatic high-risk patients and the spectrum of risk for recurrent preterm delivery

In asymptomatic women with a prior PTD, quantitative fFN assessment at 24 weeks effectively delineates the risk of recurrent sPTD. Quantification of fFN may provide additional information regarding the spectrum of risk of subsequent sPTD than would be derived from the standard qualitative screen currently used.