OB MOCK EXAM

Question 1

Which structural abnormality is a feature of Pentalogy of Cantrell?

Answer 1

Ectopia cordis or omphalocele

Question 2

What will be dilated with aqueductal stenosis?

Answer 2

3rd and lateral ventricles

Question 3

What is Meckel-Gruber syndrome?

Answer 3

Euploid fetus with an occipital cephalocele and polycystic kidneys

Question 4

Concern for Ebsteins anomaly is suggested when there is non-normalization of what anatomical structure?

Answer 4

Tricuspid valve

Question 5

When is the midgut herniation normally visualized?

Answer 5

9-12 weeks

Question 6

In which scenario is clinodactyly most often present?

Answer 6

Trisomy 18
Clenched fists with overlapping digits

Question 7

Which lab value is most likely to be consistent in a Down syndrome fetus?

Answer 7

Low AFP

Question 8

What is Arnold-Chiari malformation?

Answer 8

Abnormal posterior fossa including downward displacement of the cerebellum and loss of cisterna magna

Question 9

What disease is defined as underossification of the skeleton characterized by rib fractures and a compressible skull?

Answer 9

Osteogenesis imperfecta

Question 10

What intracranial defect is often present with Patau syndrome?

Answer 10

Holoprosencephaly

Question 11

What is the normal cardiac axis termed?

Answer 11

Levocardia

Question 12

What term describes absent cranium and exposure of the fetal cerebrum?

Answer 12

Exencephaly

Question 13

What produces cerebral spinal fluid?

Answer 13

Choroid plexus

Question 14

Which of the following defects below is considered a symmetrical anomaly?

Answer 14

Omphalocele

Question 15

What syndrome is a proboscis associated with?

Answer 15

Patau

Question 16

What congenital condition is most likely related to oligohydramnios?

Answer 16

ARPKD

Question 17

A second trimester anatomy scan reveals findings of unilateral hydroureter and hydronephrosis. What is the likely level of obstruction?

Answer 17

UVJ

Question 18

What deficiency is related to acrania?

Answer 18

Folate

Question 19

What is the most common malignant germ cell tumor?

Answer 19

Dysgerminoma

Question 20

What is the expected sonographic appearance of the prepubescent uterus?

Answer 20

Tubular in shape

Question 21

What would most likely be associated with early onset fetal growth restriction?

Answer 21

Chromosomal anomaly

Question 22

What Doppler console settings should be used when evaluating for ovarian torsion?

Answer 22

Low velocity scale and low wall filter

Question 23

What is the most common sonographic abnormality in the presence of a live embryo?

Answer 23

Subchorionic hemorrhage

Question 24

What 2 vessels are connected by the ductus arteriosus?

Answer 24

Aorta and MPA

Question 25

What structures does the cerebral aqueduct connect?

Answer 25

3rd and 4th ventricle

Question 26

What is the correct scanning plane and upper normal measurement of the nuchal thickness at 18 weeks gestation?

Answer 26

Axial plane outer to outer at 5.9mm

Question 27

What type of adnexal abnormality is seen with ovarian hyperstimulation syndrome?

Answer 27

Theca lutein cysts

Question 28

What best describes the expected ovarian doppler waveform performed during the luteal phase?

Answer 28

Increased end diastolic velocity