Why are there different qualifying ages for amniocentesis without prenatal screening in singleton and multiple gestation pregnancies?
Prenatal screening tests for Down syndrome are less sensitive in pregnancies with multiple gestations as compared to singleton pregnancies. Therefore, women with twin / triplet pregnancies who have a higher risk of Down syndrome based on age (≥35 years old) have the option of choosing a definitive test (amniocentesis) to rule out Down syndrome.
Related Questions
- Why are there different qualifying ages for amniocentesis without prenatal screening in singleton and multiple gestation pregnancies?
- Does Preimplantation Genetic Diagnosis - PGD eliminate the need for amniocentesis and other prenatal screening?
- What makes screening at Raindance so different from other festivals?
