Chorionic villus sampling
Risks
The risks of CVS are only slightly higher than those of an amniocentesis. Possible complications include: - Bleeding
- Infection
- Miscarriage
- Rh incompatibility in the mother
- Rupture of membranes
Signs of complications include:
Report any signs of complications to your health care provider. CVS may also cause limb problems in the fetus. This risk appears to be very low (1 in 3,000) when CVS is performed after 10 weeks gestational age.
Special Considerations
If your blood is Rh negative, you may receive RhoGAM to prevent Rh incompatibility. You will receive a follow-up ultrasound 2 to 4 days after the procedure to make sure the pregnancy is proceeding normally.
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