The pregnant patient and her partner are both 40 years old. The nurse is explaining the options of chorionic villus sampling (CVS) and amniocentesis for genetic testing. The nurse should correct the patient if she states:
1. "Amniocentesis results are available sooner than CVS results are."
2. "CVS carries a higher risk of limb abnormalities."
3. "Amniocentesis cannot detect a neural tube defect."
4. "CVS is performed through my belly or my cervix."
1
Rationale 1: Amniocentesis results take longer to process than do CVS results.
Rationale 2: Limb and facial or jaw anomalies are associated with CVS, but not with amniocentesis.
Rationale 3: Neural tube defects are not genetic in nature; therefore, they are not detected by either amniocentesis or CVS.
Rationale 4: CVS can be performed through either a transabdominal or transvaginal approach.
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