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If your scan did not show anything unexpected, we recommend waiting for the second CVS result, within 2 weeks, before making a decision about whether to end your pregnancy. If this confirms what was seen during your scan, your doctor will discuss your options with you straight away. You will get a rapid CVS result in about 3 days. 5.1 CVS after a higher chance result for Down’s syndrome, Edwards’ syndrome or Patau’s syndrome Transcervical CVS may be preferred to transabdominal CVS if it is easier to reach your placenta this way.Īfter taking the needle out, your baby is observed for a short time on ultrasound. There is no difference in the risk of miscarriage between the 2 methods. Transcervical CVS is also more likely to cause vaginal bleeding immediately after the procedure, which occurs in about 10 in every 100 women who have this procedure. The transabdominal method is more common because it is often easier to carry out. through the cervix (neck of the womb) – transcervical.through the abdomen (tummy) – transabdominal.If the doctor decides it is not safe to do the procedure at a particular time, they may offer you another appointment 7 to 14 days later when the placenta will be larger and easier to reach. The sample contains some of your baby’s cells which contain genetic information (DNA).ĬVS is usually done from weeks 11 to 14 of pregnancy but can be done later. If you have a CVS, we take a tiny sample of tissue from the placenta (placental tissue) for testing. Your midwife will explain what this means for you. If you decide not to have a CVS or amniocentesis, you can still have all other parts of your routine antenatal care. Your appointment may be longer to allow time to discuss the procedure beforehand and to rest afterwards.

Both procedures usually take around 10 minutes to perform. Your hospital will give specific instructions. Your doctor or midwife will let you know before you come.

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You may need to have a full bladder when you come for the appointment. Most hospitals say it is safe to eat and drink as normal before and after the procedure.

If you decide to have a CVS or amniocentesis, most hospitals suggest you bring someone with you, but you should not bring children.

your options if you have a test and your baby is found to have a chromosomal or genetic condition.when and how you get the results of a CVS or amniocentesis test.the chance that we will need to offer you a repeat diagnostic test.how we test CVS or amniocentesis samples in the laboratory, the possible results of those tests and their reliability.which test ( CVS or amniocentesis) would be more appropriate for you.the chance of miscarriage from CVS or amniocentesis.the conditions that CVS or amniocentesis can detect.

Cvs timing today professional#

Your healthcare professional should discuss with you:

an invasive test ( CVS or amniocentesis).

You can ask for more information and do not have to decide straight away. They should give you enough time to talk through your options. Your healthcare professional will help you make the decision that is right for you and support you in that decision. This information should support, but not replace, the discussions you have with your healthcare professional.

you or your baby’s father have a family history of another genetic condition, such as sickle cell disease, thalassaemia major or cystic fibrosis.

you have had a previous pregnancy/baby with a genetic condition.

you have a higher chance screening-test result for Down’s syndrome or Edwards’ syndrome and Patau’s syndrome.

there were unexpected findings at the time of your ultrasound scan.

It can help to talk through possible results and outcomes with your doctor or midwife before deciding whether or not to have one of these tests. You are reading this information because you have been offered a CVS or amniocentesis test. Invasive tests involve taking a sample from within the woman’s body. Diagnostic tests can tell if your baby definitely has a serious condition by checking their chromosomes for genetic information.ĬVS and amniocentesis are both invasive tests. In this information, the word ‘we’ refers to the NHS service that provides screening.Ĭhorionic villus sampling ( CVS) and amniocentesis are diagnostic tests. Public Health England ( PHE) created this information on behalf of the NHS.