Other rare complications include bleeding, infection and ruptured membranes. Complications to the pregnant woman herself are extremely rare. If your blood group Rh negative you should have anti-D after the C.V.S., although if your doctor has indicated that you have antibodies then amniocentesis is preferable. C.V.S. like any test may fail because an inadequate sample is obtained or because the laboratory cannot produce a result. Both of these risks are very uncommon.
Incorrect results are possible but are extremely rare.
If there is any blood or clear fluid from the vagina, you should consult your own doctor. Details of charges are available from our practice. We will give you an account for the test itself plus the laboratory will separately send an account for laboratory services plus any necessary blood test. Medicare will cover part of the cost for each of these accounts. Those few patients in whom the test shows that the fetus has an abnormality will be given information so that they can make a choice about whether to continue the pregnancy.