Sequential Screen SM Part 1 leads to the detection* of approximately: Results from Part 1 and Part 2 are combined to provide a final, complete result: your risk of having a baby with Down syndrome, trisomy 18 or an open neural tube defect. If you are not at increased risk, you will return approximately between 18 and 20 weeks for a second blood test. If you are at an increased risk, your doctor will offer diagnostic testing, such as amniocentesis or chorionic villi sampling (CVS), to confirm the results of your screening test. Sequential Screen SM is a two-part screening test that combines information from both the first and second trimesters to provide the highest accuracy of biochemical and/or imaging tests.Īpproximately between 12 and 13 weeks of pregnancy, a small amount of your blood is drawn to evaluate the levels of certain proteins and hormones produced during your pregnancy, and a special ultrasound measurement is taken of the back of the baby’s neck (called the nuchal translucency) to provide your risk of having a baby with Down syndrome or trisomy 18. Open neural tube defects, such as spina bifida and anencephaly.If you are not sure whether you should have Sequential Screen SM, please talk with your doctor, a genetic counselor or other specialist in genetics. a family history of Down syndrome, trisomy 18, or open neural tube defects.concerns regarding open neural tube defects in pregnancy, such as spina bifida. concerns regarding Down syndrome and trisomy 18.Understanding your testing options helps you prepare for the future. What are integrated and Sequential Screening? Bohm-Velez interviewed about innovative ultrasound technology Elastography now available for breast ultrasoundĭr.
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