गर्भावस्था में Dual Marker क्या होता है | DUAL MARKER test in pregnancy | Level 1 scan

Описание: The dual marker test, also known as the double marker test, is a prenatal screening test that helps assess the risk of chromosomal abnormalities in a fetus, such as Down syndrome, Edwards syndrome, and Patau syndrome. It involves measuring two specific markers in the mother's blood: human chorionic gonadotropin (hCG) and pregnancy-associated plasma protein-A (PAPP-A). This test is typically performed during the first trimester, ideally between the 11th and 13th week of pregnancy, and is often combined with a Nuchal Translucency (NT) scan.
If a dual marker test indicates a high or moderate risk for chromosomal abnormalities, the next step typically involves more definitive diagnostic tests like Amniocentesis or Chorionic Villus Sampling (CVS). These tests offer a more accurate diagnosis by analyzing fetal cells. Non-Invasive Prenatal Testing (NIPT) may also be considered as a less invasive option.
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