The iGFBP-1 and fFN Rapid Test (Vaginal Secretion) is a visually interpreted, qualitative immunochromatographic test for detection of iGFBP-1 and fFN in vaginal secretions during pregnancy, which is a major protein marker of the amniotic fluid in a vaginal sample. The test is intended for professional use to help diagnose the rupture of fetal membranes or preterm delivery in pregnant women.