Percutaneous umbilical blood sampling (PUBS, or cordocentesis). It can increase your risk of a miscarriage, but according to the Mayo Clinic, only by less than 1 percent. This test is done between the 9th and 14th week of pregnancy. Your doctor will take cells from your placenta to analyze fetal chromosomes. Your doctor takes a sample of amniotic fluid to examine the number of chromosomes your baby has. Your doctor may order additional tests to detect Down syndrome in your baby. 
If any of these tests aren’t normal, you’ll be considered at high risk for birth defects. This test is done between 15 and 20 weeks of pregnancy. Second trimesterĪn ultrasound and quadruple marker screen (QMS) test can help identify Down syndrome and other defects in the brain and spinal cord. If results aren’t normal, your doctor may follow up with an amniocentesis after your 15th week of pregnancy. These tests have a higher false-positive rate than tests done at later pregnancy stages. First trimesterĪn ultrasound evaluation and blood tests can look for Down syndrome in your fetus. If you’re a woman over 35, your baby’s father is over 40, or there’s a family history of Down syndrome, you may want to get an evaluation. Screening for Down syndrome is offered as a routine part of prenatal care in the United States. Screening for Down syndrome during pregnancy
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They may struggle with respiratory infections, urinary tract infections, and skin infections.
People with Down syndrome are also more prone to infection.
late tooth growth, causing problems with chewing. sleep apnea (interrupted breathing during sleep). Medical complications often accompany Down syndrome. Mental and social development delays may mean that the child could have: People with Down syndrome usually have some degree of developmental disability, but it’s often mild to moderate. Though the likelihood of carrying a baby with Down syndrome can be estimated by screening during pregnancy, you won’t experience any symptoms of carrying a child with Down syndrome.Īt birth, babies with Down syndrome usually have certain characteristic signs, including:Īn infant with Down syndrome can be born an average size, but will develop more slowly than a child without the condition.
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