Review of Rapid Fetal Fibronectin - Alberta.ca
2021-8-13 · The Rapid fFN test is FDA approved for use in symptomatic patients between 24 0 and 34 6 weeks gestation and for asymptomatic patients between 22 0 and 30 6 weeks gestation. 5 A negative fFN test result helps give healthcare providers confidence that preterm birth is not imminent.
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