PU Fetal Anomaly Detection 2

Question 1

What is an omphalocele?

Accepted Answer

A midline abdominal wall defect with herniation of organs covered by a membrane

Answer

An omphalocele is a midline defect at the umbilical cord insertion where abdominal organs herniate into the base of the cord, covered by a peritoneal/amniotic membrane.

Question 2

Nuchal fold thickness greater than how many millimeters at 16–20 weeks is considered abnormal?

Accepted Answer

6 mm

Answer

A nuchal fold thickness of 6 mm or greater measured at 16 to 20 weeks gestation is considered an abnormal finding and a soft marker for Down syndrome.

Question 3

What condition does a 'strawberry-shaped' fetal skull suggest?

Accepted Answer

Trisomy 18 (Edwards syndrome)

Answer

A strawberry-shaped skull, with flattening of the occiput and pointed frontal bones, is a classic cranial marker associated with Trisomy 18.

Question 4

Which ultrasound finding is associated with congenital diaphragmatic hernia (CDH)?

Accepted Answer

Stomach and bowel in the chest alongside the heart

Answer

In CDH, abdominal organs herniate through a diaphragmatic defect into the chest, causing the stomach and bowel to appear alongside or displacing the heart.

Question 5

What does a single umbilical artery (SUA) indicate?

Accepted Answer

An association with chromosomal and structural anomalies

Answer

A single umbilical artery (two-vessel cord) is associated with an increased risk of chromosomal abnormalities, structural anomalies, and IUGR compared to a normal three-vessel cord.

PU - Pregnancy Ultrasound Certification Practice Test

PU - Pregnancy Ultrasound Certification Practice Test

PU Fetal Anomaly Detection 2