chorionic villus sampling

[n] - a prenatal test to detect birth defects at an early stage of pregnancy
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chorionic villus sampling

Chorionic villus sampling (CVS) is a diagnostic test carried out in early pregnancy, usually between Week 10 and Week 12 of pregnancy. Some of the cells which line the placenta, the chorionic villi, are removed through the cervix or abdomen using a needle or catheter. The cells are tested to see whether the developing fetus has Down's syndrome or o
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Chorionic villus sampling

a method of diagnosing foetal defects in which a small amount of tissue is taken from the placenta and analysed for abnormalities
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Chorionic villus sampling

Chorionic villus sampling is a test during pregnancy to see if there are any genetic problems with the foetus. A small sample of tissue is taken from the placenta.
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Chorionic villus sampling

Our Chorionic villus sampling Main Article provides a comprehensive look at the who, what, when and how of Chorionic villus sampling Chorionic villus sampling: A procedure for first-trimester prenatal diagnosis. Chorionic villus sampling may be done between the eighth and tenth weeks of pregnancy. The aim is to diagnose severe abnormalities afflict
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chorionic villus sampling

<procedure> A procedure for obtaining a sample of chorionic villi for the purpose of genetic testing, usually performed between 9 and 12th weeks of pregnancy. ... Amniocentesis testing has greatly supplanted the use of this form of genetic testing. ... (27 Sep 1997) ...
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chorionic villus sampling

chorionic villus biopsy noun a prenatal test to detect birth defects at an early stage of pregnancy; tissue from the chorionic villi is assayed
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chorionic villus sampling

(from the article `pregnancy`) The technique of retrieving a sample of villi from the chorion (outer embryonic membrane) within the uterus is similar to amniocentesis but can be ... ...contained in the amniotic fluid also can be cultured and the karyotype (chromosome morphology) determined to identify chromosomal abnormality. ... Cho...
Found on http://www.britannica.com/eb/a-z/c/77

Chorionic Villus Sampling

A genetic screening test that is offered to women at risk between the 10th and 12th weeks of pregnancy. A procedure in which a small sample of cells are taken from the placenta through a needle placed through the vagina and the cervix. An ultrasound is used to guide the needle. The test is used to diagnose Down syndrome and other birth defects. Sy.
Found on http://www.pregnology.com/AZ/C/5

chorionic villus sampling

chorionic villus sampling (CVS) or chorionic villus biopsy(CVB) (kōr"ē-on'ik, kôr"–) , diagnostic procedure in which a sample of chorionic villi from the developing placenta is removed from the uterus of a pregnant woman (see pregnancy) using a fine needle inserte...
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chorionic villus sampling

(CVS) Type: Term See: chorionic villus biopsy
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chorionic villus sampling

Biopsy of a small sample of placental tissue, carried out in early pregnancy at 10–12 weeks' gestation. Since the placenta forms from embryonic cells, the tissue obtained can be tested to reveal genetic abnormality in the fetus. The advantage of CVS over amniocentesis is that it provides an earlier diagnosis, so that if any abnormality is ...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0031621.html

Chorionic villus sampling

Chorionic villus sampling (CVS), sometimes called `chorionic villous sampling` (as `villous` is the adjectival form of the word `villus`), is a form of prenatal diagnosis to determine chromosomal or genetic disorders in the fetus. It entails sampling of the chorionic villus (placental tissue) and testing it for chromosomal abnormalities, usu...
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Chorionic Villus Sampling

An invasive prenatal diagnostic procedure involving removal of villi from the human chorion to obtai
Found on http://www.encyclo.co.uk/local/22391

Chorionic Villus Sampling

An invasive prenatal diagnostic procedure involving removal of villi from the human chorion to obtai
Found on http://www.encyclo.co.uk/local/22391
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