Chromasomal or. Genetic disorders. Can detect missing or extra chromasomes, i.e. 47 instead of 46 present in down syndrome. Can test for genetic, inherited disorders like cystic fibrosis or tay-sachs disease.
Which of the two tests are better? Or are recommended? Amniocentesis or cvs (chorionic villus sampling)? No past history of any health problems.
It depends. CVS is generally thought to have a slightly higher miscarriage rate than amniocentesis, but this may not be the case everywhere. For mor e information check this link: http://www. Babycenter. Com/0_chorionic-villus-sampling-cvs_328.bc? Page=4#articlesection8.
MFMs. Maternal fetal medicine specialists usually perform cvs, although there are occasional doctors of other specialties who have been trained to do the procedure. Fellows, who are still in training, may perform the procedure under the supervision of the doctor who is teaching them.
MFMs. Your obstetrician would refer you to a maternal-fetal medicine specialist (perinatologist) or you may have one already if a prior pregnancy or other circumstances caused your current pregnancy to be high risk.
What are amniocentesis, chorionic villus sampling and blood/saliva test screening used for? Abortions?
Prenatal diagnosis. Cvs and amniocentesis are used to discover chromosomal abnormalities in the fetus. They are also used to diagnose genetic diseases, such as cystic fibrosis, that some people are at risk for. Blood and saliva screening tests are used to find out if parents are at risk for a baby with certain genetic diseases.
Is it a boy or girl? Amniocentesis and chorionic villus sampling are used mainly for testing to determine the sex of your unborn child. Blood/saliva testing is used for so many other conditions they can't begin to begin to be listed here.
Yes and no. Any time you have a procedure like this done it can make you loose the pregnancy.
No. Your obgyn can order it for you by sending you to a specialist who does the procedure.
YES!! You need a specialist, a maternal-fetal expert, also called a perinatologist to do this. Your OB can order it, but you need a specialist with experience & skills to minimize risks to your fetus.
10-12 weeks. Chorionic villus sampling (cvs) obtains cells from the fetoplacenta for testing at 10-12 weeks of pregnancy, amniocentesis obtains fetal skin/urine cells at 16-18 weeks. Higher risks for miscarriage (2-3% for cvs, <0.5% or negligible for amnio) balance against the cvs advantage of testing before a women "shows, " preserving the privacy of pregnancy (testing).
First trimester. Cvs can be performed as early as 9 to 12 weeks of gestation - compared to amniocentesis that is usually done at 1bout 15 weeks.
CVS. The chorionic villus can be grown in tissue culture and tested for chromosomal abnormalities or tested for a genetic disease, such as cystic fibrosis.