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Placental Abnormalities

Which of the following statements use correct terminology to describe the maternal/uterine surface and fetal surface of the placenta?

a. Maternal surface: basal plate, fetal surface: amnionic plate

b. Maternal surface: basal plate, fetal surface: chorionic plate

c. Maternal surface: decidual plate, fetal surface: chorionic plate

d. Maternal surface: chorionic plate, fetal surface: amnionic plate

In their 2013 recommendations, the American Institute of Ultrasound in Medicine states that which of the following should be imaged during prenatal ultrasound examination?

a. Number of vessels contained in umbilical cord

b. Umbilical cord at both fetal and placental insertion sites

c. Placental location and relationship to internal cervical os

d. All of the above

Which of the following is true regarding placental measurements?

a. Normal placenta weighs approximately 500 grams at term.

b. Normal placenta is approximately 2 to 4 cm thick as visualized on ultrasound.

c. Normal placenta increases in thickness at a rate of approximately 1 mm per week.

d. All of the above

The image below is best described as which placental variant?

Used with permission from Dr. Lindsey Jackson.

a. Bilobate placenta

b. Succenturiate lobe

c. Placenta membranacea

d. Circumvallate placenta

For which situation is submission of the placenta for pathological examination the most informative and cost effective?

a. After cesarean delivery for arrest of descent

b. Cholestasis complicating the third trimester

c. Oligohydramnios complicating the third trimester

d. All of the above

The placental variant demonstrated ...

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