How might fetal anomalies be detected during assessment?

Chorionic Villus Sampling (CVS) is a diagnostic procedure that can be performed during the first trimester of pregnancy to assess fetal health and detect potential anomalies. During CVS, a small sample of the placenta is taken and analyzed for genetic conditions and chromosomal abnormalities, which can help identify certain fetal anomalies early in the pregnancy. This method is particularly useful for detecting conditions such as Down syndrome and other genetic disorders.

In contrast, maternal health screenings and routine blood tests are often more general and do not specifically target the detection of fetal anomalies. These tests can provide valuable information about maternal health and general risk factors but may not offer the detailed genetic insights provided by CVS. Postnatal examinations, while crucial for assessing the newborn's health and identifying any immediate concerns, do not allow for the early detection of anomalies while the fetus is still in utero. Thus, CVS stands out as a targeted method for detecting fetal anomalies during pregnancy.