What information should be included when teaching a patient about chorionic villus sampling (CVS)?

When teaching a patient about chorionic villus sampling (CVS), it is essential to highlight that the procedure is specifically designed to detect chromosomal anomalies. CVS is a prenatal diagnostic test that involves taking a sample of the chorionic villi, which are tiny finger-like projections from the placenta. This sample can be analyzed to identify genetic conditions, including chromosomal abnormalities such as Down syndrome, trisomy 13, and others.

Understanding the purpose of CVS is critical for patients, as it provides valuable information regarding the fetal genetic makeup early in pregnancy, typically between 10 to 13 weeks of gestation. The ability to detect these anomalies allows parents to make informed decisions regarding their pregnancy and prepare for potential challenges.

Other options do not accurately represent the scope and timing of CVS. For example, the procedure does not solely identify genetic disorders but is specifically effective for chromosomal anomalies as a primary focus. Additionally, CVS is not recommended at 20 weeks gestation; it is usually conducted in the first trimester. Finally, the procedure can often be done as an outpatient, meaning a hospital stay is not necessarily required, further emphasizing the need for accurate information regarding the process and implications of CVS.