What does a amniocentesis test for?
Amniocentesis is a prenatal procedure that your doctor may recommend you have during pregnancy. The test checks for fetal abnormalities (birth defects) such as Down syndrome, cystic fibrosis or spina bifida.
When is the amniocentesis test performed?
Amniocentesis is usually carried out between the 15th and 20th weeks of pregnancy, but you can have it later if necessary. It can be performed earlier, but this may increase the risk of complications of amniocentesis and is usually avoided.
What is Cordocentesis test?
Cordocentesis, also known as percutaneous umbilical blood sampling, is a diagnostic prenatal test. During cordocentesis, an ultrasound transducer is used to show the position of the fetus and umbilical cord on a monitor.
What happens during a CVS test?
Chorionic villus sampling (CVS), or chorionic villus biopsy, is a prenatal test that involves taking a sample of tissue from the placenta to test for chromosomal abnormalities and certain other genetic problems.
How painful is a CVS test?
CVS is usually described as being uncomfortable, rather than painful. In most cases, an injection of local anaesthetic will be given before transabdominal CVS to numb the area where the needle is inserted, but you may have a sore tummy afterwards. Transcervical CVS feels similar to a cervical screening test.
How long after a CVS can you miscarry?
Most miscarriages that happen after CVS occur within 3 days of the procedure. But in some cases a miscarriage can occur later than this (up to 2 weeks afterwards).
How long should you rest after CVS?
Are there any restrictions after CVS? Avoid strenuous activity for approximately 24 hours after the procedure. This should include such activities as heavy lifting (over 20 lbs), jogging, and aerobics.
How accurate are CVS results?
CVS is estimated to be about accurate in 99 cases out of 100. However, it cannot test for every birth defect, and it may not give conclusive results. In about 1 in every 100 cases, the results of CVS cannot be completely certain that the chromosomes in the fetus are normal.
What is the risk of miscarriage with amniocentesis?
If you have amniocentesis after 15 weeks of pregnancy, the chance of having a miscarriage is estimated to be up to 1 in a 100. The risk is higher if the procedure is carried out before 15 weeks.
How long should you rest after an amnio?
You will probably be able to go home 15 to 30 minutes after the test. You should rest for several hours after the test. Do not exercise, lift anything heavy, douche, use tampons, or have sex after the test. By the next day, you can do your normal activities, unless your doctor tells you not to.