Chorionic Villus Sampling | CVS Test Pregnancy

Chorionic villus sampling (CVS) is a test carried out during pregnancy to detect specific abnormalities in an unborn baby. A sample of cells is taken from the placenta (the organ that links the mother’s blood supply with her unborn baby’s) and tested for genetic defects.

How is it performed?

The test takes about 5 minutes, although the whole consultation will take about 30 minutes. CVS has been described as uncomfortable rather than painful, and there may be some cramps afterwards which are similar to menstrual cramps.

How does CVS work?

Early in pregnancy, the embryo divides into 2 parts. One part develops into the baby; the other part develops into the placenta. The part of the embryo that forms the placenta starts out as finger-like sections known as ‘chorionic villi’. These burrow into the wall of the womb to get close to the mother’s blood vessels.

Chorionic Villous Sampling

CVS increases the risk of miscarriage, but only 1 in every 100 pregnancies that end in miscarriage would be directly due to CVS. This risk is in addition to the ‘background risk’ of miscarriage that all women have in early pregnancy due to natural causes. It is important to discuss your risk of miscarriage with your doctor, midwife or genetic counsellor.

You may have some vaginal bleeding after a CVS. Talk to your doctor about what you can expect after the testing and what symptoms to look out for.

For endocrine problems

Drug discovery and drug development are complex and expensive endeavors undertaken by pharmaceutical companies, academic scientists, and governments. As a result of this complex path from discovery to commercialization, partnering has become a standard practice for advancing drug candidates through development pipelines. Governments generally regulate what drugs can be marketed, how drugs are marketed, and in some jurisdictions,

For the digestive system

Drug discovery and drug development are complex and expensive endeavors undertaken by pharmaceutical companies, academic scientists, and governments. As a result of this complex path from discovery to commercialization, partnering has become a standard practice for advancing drug candidates through development pipelines. Governments generally regulate what drugs can be marketed, how drugs are marketed, and in some jurisdictions,

For the ear, nose and oropharynx

Drug discovery and drug development are complex and expensive endeavors undertaken by pharmaceutical companies, academic scientists, and governments. As a result of this complex path from discovery to commercialization, partnering has become a standard practice for advancing drug candidates through development pipelines. Governments generally regulate what drugs can be marketed, how drugs are marketed, and in some jurisdictions,

For the respiratory system

Drug discovery and drug development are complex and expensive endeavors undertaken by pharmaceutical companies, academic scientists, and governments. As a result of this complex path from discovery to commercialization, partnering has become a standard practice for advancing drug candidates through development pipelines. Governments generally regulate what drugs can be marketed, how drugs are marketed, and in some jurisdictions,

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