The main goal of risk in terms of down syndrome pregnancies as a screening test is to extract. Is newer than the triple test, in the early stages of pregnancy to have the advantage of applicability and a more reliable test is. Triple test takes place. There are four parameters of the test. Gestational age, beta HCG ratio, plasma protein (PAPP-A), baby nuchal translucency measurement. These four variables, pregnancy test is applied down to [...]


