A nurse is providing education to a client who is scheduled to undergo chorionic villus sampling (CVS).

Which statement by the client indicates an understanding of this test?

AFP is a screening tool that can indicate the possibility of certain fetal anomalies, such as neural tube defects, abdominal wall defects, or chromosomal abnormalities.

However, AFP results are not diagnostic and cannot confirm the presence or absence of these conditions.

Therefore, further tests, such as ultrasound or amniocentesis, are needed to verify the results.

Choice A is wrong because AFP results are not diagnostic for fetal anomalies.

They only indicate a risk level that needs to be confirmed by other tests.

Choice C is wrong because AFP results can detect not only neural tube defects, but also other fetal anomalies, such as abdominal wall defects or chromosomal abnormalities.

Choice D is wrong because AFP results are not affected by maternal race and ethnicity.

They are affected by maternal age, weight, diabetes, multiple gestation, and gestational age.

Normal level of AFP for the given gestational age.

AFP is a protein that the liver makes when its cells are growing and dividing to make new cells.

It is normally high in unborn babies and drops very low after birth.

The AFP test measures the amount of AFP present in blood and can help diagnose certain types of cancer and check how well treatment is working.

It can also help detect some birth defects in pregnant women.

Choice B is wrong because high level of AFP indicating a neural tube defect.

Neural tube defects are abnormalities that affect the brain and spinal cord of the fetus.

They can cause spina bifida, which is a condition where the spine does not close properly.

High levels of AFP can be a sign of neural tube defects, but they can also be caused by other factors, such as multiple pregnancies, inaccurate dating of pregnancy, or fetal death.

Choice C is wrong because low level of AFP indicating a chromosomal abnormality.

Chromosomal abnormalities are genetic disorders that affect the number or structure of chromosomes in the fetus.

They can cause Down syndrome, which is a condition where the fetus has an extra copy of chromosome 212.

Low levels of AFP can be a sign of chromosomal abnormalities, but they can also be caused by other factors, such as inaccurate dating of pregnancy, fetal death, or maternal obesity.

Choice D is wrong because inconclusive result, requiring further evaluation.

An inconclusive result means that the AFP level is neither too high nor too low to indicate a problem with the fetus.

It does not necessarily mean that there is something wrong with the fetus, but it may require further testing to confirm or rule out any abnormalities.

Normal ranges for AFP levels vary depending on the gestational age and the laboratory that performs the test.

Generally, the normal range for AFP levels in pregnant