The Double Marker Test is a vital prenatal screening done between the 11th and 14th week of pregnancy to assess the risk of chromosomal abnormalities in the unborn baby. It measures the levels of free Beta-hCG (human chorionic gonadotropin) and PAPP-A (Pregnancy-Associated Plasma Protein-A) in the mother’s blood. Abnormal levels may indicate a higher chance of conditions like Down syn... https://redcliffelabs.com/double-marker-test