PRENATAL SCREENING (6 to 9 of 15) 09/02/24

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6) What is the primary clinical indication for cell-free fetal DNA testing in obstetrics?

1 point

a. Determination of fetal sex

b. Assessment of fetal lung maturity

c. Screening for aneuploidies, such as Down syndrome

d. Detection of fetal cardiac anomalies

e. Evaluation of fetal growth restriction

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7) Which of the following is the primary source of fetal DNA used in cell-free DNA testing during pregnancy?

1 point

a. Fetal blood sample

b. Fetal urine sample

c. Fetal tissue biopsy

d. Cell-free fetal DNA in maternal blood

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8) What is the main advantage of cell-free DNA testing compared to traditional invasive prenatal diagnostic procedures, such as amniocentesis or chorionic villus sampling (CVS)?

1 point

a. Higher accuracy in detecting fetal chromosomal abnormalities

b. Lower risk of miscarriage

c. Ability to determine fetal sex

d. Earlier gestational age at which testing can be performed

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9) Which of the following chromosomal abnormalities can be reliably detected using cell-free DNA testing during pregnancy?

1 point

a. Turner syndrome (45,X)

b. Down syndrome (Trisomy 21)

c. Klinefelter syndrome (47,XXY)

d. Cri-du-chat syndrome (5p-)

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