Down+Syndrome-+Diagnosis

=//**Down Syndrome testing:**//= If the pregnant mom's child is at high risk for Down Syndrome she can decide to have some prenatal tests which are listed as follows...


 * ** __Nuchal Transluency__- ** Uses ultra sound to measure the clear space in folds of tissue behind the neck.


 * __** Triple screen or quadruple screen- **__ measures blood substances


 * __** Integrated screen- **__ use of blood test from the first trimester.


 * **__Genetic ultrasound-__** A detailed ultrasound is often performed at 18 to 20 weeks in conjunction with the blood tests, and it checks the fetus for some of the physical traits abnormalities associated with Down syndrome.


 * **__Chroinic villus sampling-__** CVS involves taking a tiny sample of the placenta, either through the cervix or through a needle inserted in the abdomen. The advantage of this test is that it can be performed during the first trimester, between 8 and 12 weeks. The disadvantage is that it carries a slightly greater risk of miscarriage as compared with amniocentesis and has other complications.


 * **__Amniocentesis-__** This test, performed between 15 and 20 weeks of pregnancy, involves the removal of a small amount of amniotic fluid through a needle inserted in the abdomen. The cells can then be analyzed for the presence of chromosomal abnormalities. Amniocentesis carries a small risk of complications, such as preterm labor and miscarriage