Gwendolyn, a pregnant woman, is undergoing a prenatal medical procedure in which her doctor directs high-frequency sound waves into her abdomen to create a visual representation of the fetus's inner structures. The doctor informs her that the procedure will reveal the number of fetuses she is carrying, detect abnormalities in the fetus, and give clues to the sex of the baby. In this scenario, which of the following prenatal medical procedures is Gwendolyn most likely undergoing?

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Gwendolyn is undergoing ultrasound sonography, which uses high-frequency sound waves to create a visual representation of the fetus's inner structures. This procedure can reveal the number of fetuses, detect abnormalities, and give clues to the sex of the baby. Chorionic villus sampling and amniocentesis are both invasive prenatal procedures that involve taking a sample of the fetus's cells, while the triple screen is a blood test that screens for certain genetic or chromosomal conditions.

Gwendolyn, a Pregnant Woman, Is Undergoing a Prenatal Medical Procedure