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Cell-Free DNA Test

… defects caused by too many or too few chromosomes, such as trisomy 18 and Down syndrome (trisomy 21) . Learn more Pregnancy: Should I Have Screening … defects caused by too many or too few chromosomes, such as trisomy 18 and Down syndrome (trisomy 21) . Learn more …

First-Trimester Screening for Birth Defects

… baby having certain birth defects such as Down syndrome or trisomy 18 . First-trimester screening tests include: Blood … baby having certain birth defects such as Down syndrome or trisomy 18 . Your doctor may tell you the result of your … chance that your baby has Down syndrome or trisomy 18. Doctors often use a certain number as a cutoff …

Alpha-Fetoprotein AFP Test

… to find other chromosomal problems, such as Down syndrome (trisomy 21) or Edwards syndrome (trisomy 18) . An AFP test can help find an omphalocele, a … to find other chromosomal problems, such as Down syndrome (trisomy 21) or Edwards syndrome (trisomy 18) . An AFP test …

Prenatal ultrasound

… determine your baby's chance of having Down syndrome (DS), Trisomy 18 or an open neural tube defect. Please talk to … suggest a congenital condition, such as Down syndrome or Trisomy 18. Your health care provider may offer further …

Birth Defects Testing

… include: Genetic disorders, such as Down syndrome and trisomy 18 . Diseases passed in a family, such as Tay-Sachs … It can help find genetic problems like Down syndrome or trisomy 18. This test is an option for women who have risk … include: Genetic disorders, such as Down syndrome and trisomy 18 . Diseases passed in a family, such as Tay-Sachs …

Nuchal Translucency Screening Test

… than normal, it can be an early sign of Down syndrome , trisomy 18 , or heart problems. The test is done between 10 … than normal, it can be an early sign of Down syndrome , trisomy 18 , or heart problems. The test is done between 10 …

Pregnancy Should I Have Screening Tests for Birth Defects

… woman's blood. It can be used to look for Down syndrome and trisomy 18 . It also may find trisomy 13, which causes intellectual disability and heart … woman's blood. It can be used to look for Down syndrome and trisomy 18 . It also may find trisomy 13, which causes …