L.Beta HCG | Free beta human chorionic gonadotropin

Free beta human chorionic gonadotropin (L.beta HCG) - this test, as one of the components in combination with other parameters, is intended to assess the risk of trisomy 21 chromosome (Down's syndrome) during the first trimester of pregnancy. Serum free βhCG concentration is a reliable marker of fetal aneuploidy. Free βhCG concentration in combination with pregnancy-associated plasma protein A (PAPP‑A) and sonographic measurement of nuchal fold thickness (NT) is a selective serum marker for identifying women at increased risk of carrying a fetus with Down syndrome during the first trimester of pregnancy. (8 - 14 weeks).