Deck 51: Sonography of the Second and Third Trimesters

Question 1

Because of the low-density brain tissue, the texture of the brain may appear ______________.

A) hyperechoic
B) hypoechoic
C) inhomogeneous
D) echogenic

Answer 1

B

Question 2

Beyond 30 weeks of gestation, a renal pelvis is considered abnormal when measuring greater than _____ millimeters (mm).

A) 4
B) 6
C) 8
D) 10

Answer 2

D

Question 3

The presentation of a fetus lying perpendicular to the maternal sagittal axis is in the ____________ position.

A) vertex
B) oblique
C) transverse
D) breech

Answer 3

C

Question 4

Which one of the following terms indicates that the fetal head is toward the fundus of the uterus?

A) Vertex
B) Cephalic
C) Breech
D) Fundal

Question 5

The cerebrospinal fluid (CSF) travels from the lateral ventricles to the third ventricle via which one of the following structures?

A) Foramina of Luschka
B) Foramen of Monro
C) Aqueduct of Sylvius
D) Foramina of Magendie

Question 6

Which one of the following structures shunts blood away from the lungs?

A) Pulmonary vein
B) Ductus venosus
C) Ductus arteriosus
D) Aorta

Question 7

Especially in the third trimester, a fetus in the breech position may demonstrate a cranium shape of which one of the following?

A) Brachycephalic
B) Cloverleaf
C) Dolichocephalic
D) Fetal position does not change the head shape.

Question 8

Normally, the fetal bladder empties at least every ______________.

A) 10 minutes
B) 15 minutes
C) 3 hours
D) 60 minutes

Question 9

Fetal anatomy may be assessed accurately after _________________.

A) 16 gestational weeks
B) 16 embryonic weeks
C) 18 menstrual weeks
D) None of the above

Question 10

Which one of the following indicates that the liver is on the right, the stomach is on the left, and the heart apex is on the left?

A) Normal situs
B) Situs inversus
C) Dextrocardia
D) Mesocardia

Question 11

Which one of the following structures carries oxygenated blood from the umbilical vein to the inferior vena cava (IVC)?

A) Foramen ovale
B) Ductus arteriosus
C) Ligamentous venous
D) Ductus venosus

Question 12

At what gestational week does the volume of amniotic fluid stop increasing?

A) 28th
B) 30th
C) 32nd
D) 34th

Question 13

The cavum septum pellucidi is observed anterior to the _______________.

A) peduncles
B) cerebellum
C) thalamus
D) corpus callosum

Question 14

When evaluating the fetal spine, aligning the transducer in a(n) ___________ axis to the spinal elements is important.

A) perpendicular
B) parallel
C) oblique
D) coronal

Question 15

The widest transverse diameter of the skull and the proper level to measure the biparietal diameter (BPD) includes which one of the following structures?

A) Peduncles
B) Fourth ventricle
C) Thalamus
D) Corpus callosum

Question 16

Which one of the following statements about the fetal liver is false?

A) The fetal liver is the main storage site for glucose.
B) The texture of the fetal liver appears pebble gray.
C) The fetal liver is very sensitive to disturbances in growth.
D) The right lobe is larger than the left lobe in the fetal liver.

Question 17

In the transverse plane, an abnormal fetal spine may appear splayed in all of the following configurations except:

A) V-shaped.
B) Y-shaped.
C) C-shaped.
D) U-shaped.

Question 18

The profile view of the fetal face is important to examine to rule out all of the following abnormalities except:

A) frontal bossing.
B) micrognathia.
C) cephalocele.
D) cleft soft palate.

Question 19

The three vessels found in the umbilical cord are which of the following?

A) One artery and two veins
B) Two arteries and one vein
C) One artery, one vein, and one portal vein
D) Hepatic vein, portal vein, and umbilical vein

Question 20

The cranial bones ossify by ______ weeks of gestation.

A) 12
B) 14
C) 16
D) 18

Question 21

Dilation of the entire ventricular system, including the fourth ventricle, is associated with which one of the following abnormalities?

A) Aqueductal stenosis
B) Spinal defects
C) Cardiac defects
D) Foramen Monro stenosis

Question 22

The size of the cistern magna is obtained by measuring from the _____________ to the ______________.

A) cerebellar lobe; skin line
B) vermis; skin line
C) cerebellar lobe; occipital bone
D) vermis; occipital bone

Question 23

Visualization of the distal femoral epiphysis signifies a gestational age beyond:

A) 28 to 30 weeks.
B) 31 to 33 weeks.
C) 33 to 35 weeks.
D) All of the above

Question 24

The normal atrium of the lateral ventricle measures ______ mm.

A) 6.5
B) 8
C) 10
D) 11