Chapter 49

Question 1

Beyond 30 weeks' gestation, a renal pelvis is considered abnormal when measuring greater than \_\_\_\_\_ millimeters (mm).
Select one:
a. 4
b. 6
c. 8
d. 10

Answer 1

d. 10

Question 2

The profile view of the fetal face is important to examine to rule out all of the following abnormalities except:
Select one:
a. Frontal bossing
b. Micrognathia
c. Cephalocele
d. Cleft soft palate

Answer 2

d. Cleft soft palate

Question 3

Visualization of the distal femoral epiphysis signifies a gestational age beyond:
Select one:
a. 28 to 30 weeks
b. 31 to 33 weeks
c. 33 to 35 weeks 
d. All of the above

Answer 3

c. 33 to 35 weeks Correctx

Question 4

Because of the low-density brain tissue, the texture of the brain may appear \_\_\_\_\_\_\_\_\_\_\_\_\_\_.
Select one:
a. Hyperechoic
b. Hypoechoic
c. Inhomogeneous
d. Echogenic

Answer 4

b. Hypoechoic Correctx

Question 5

Normally, the fetal bladder empties at least every \_\_\_\_\_\_\_\_\_\_\_\_\_\_.
Select one:
a. 10 minutes
b. 15 minutes
c. 3 hours
d. 60 minutes

Answer 5

d. 60 minutes

Question 6

In the transverse plane, an abnormal fetal spine may appear splayed in all of the following configurations except:
Select one:
a. V-shaped
b. Y-shaped 
c. C-shaped
d. U-shaped

Answer 6

b. Y-shaped Correctx

Question 7

Which one of the following structures shunts blood away from the lungs?
Select one:
a. Pulmonary vein
b. Ductus venosus
c. Ductus arteriosus 
d. Aorta

Answer 7

c. Ductus arteriosus Correctx

Question 8

The size of the cistern magna is obtained by measuring from the \_\_\_\_\_\_\_\_\_\_\_\_\_ to the \_\_\_\_\_\_\_\_\_\_\_\_\_\_.
Select one:
a. Cerebellar lobe; skin line
b. Vermis; skin line
c. Cerebellar lobe; occipital bone
d. Vermis; occipital bone

Answer 8

d. Vermis; occipital bone

Question 9

Fetal anatomy may be assessed accurately after _________________.

Select one:

a. 14 gestational weeks
b. 16 embryonic weeks
c. 18 menstrual weeks
d. None of the above

Answer 9

c. 18 menstrual weeks Correctx

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?
Select one:
a. Normal situs
b. Situs inversus
c. Dextrocardia
d. Mesocardia

Answer 10

a. Normal situs Correctx

Question 11

The cavum septum pellucidi is observed anterior to the \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
Select one:
a. Peduncles
b. Cerebellum
c. Thalamus
d. Corpus callosum

Answer 11

c. Thalamus

Question 12

Nuchal skin fold thickness of 5 mm or less is normal up to \_\_\_\_\_ weeks' gestation.
Select one:
a. 18
b. 20 
c. 22
d. 24

Answer 12

b. 20 Correctx

Question 13

The cerebrospinal fluid (CSF) travels from the lateral ventricles to the third ventricle via which one of the following structures?
Select one:
a. Foramina of Luschka
b. Foramen of Monro 
c. Aqueduct of Sylvius
d. Foramina of Magendie

Answer 13

b. Foramen of Monro Correctx

Question 14

The presentation of a fetus lying perpendicular to the maternal sagittal axis is in the \_\_\_\_\_\_\_\_\_\_\_\_ position.
Select one:
a. Vertex
b. Oblique
c. Transverse 
d. Breech

Answer 14

c. Transverse Correctx

Question 15

Dilation of the entire ventricular system, including the fourth ventricle, is associated with which one of the following abnormalities?
Select one:
a. Aqueductal stenosis
b. Spinal defects 
c. Cardiac defects
d. Foramen Monro stenosis

Answer 15

b. Spinal defects

Question 16

When evaluating the fetal spine, aligning the transducer in a(n) \_\_\_\_\_\_\_\_\_\_\_ axis to the spinal elements is important.
Select one:
a. Perpendicular
b. Parallel
c. Oblique
d. Coronal

Answer 16

a. Perpendicular Correctx

Question 17

Especially in the third trimester, a fetus in the breech position may demonstrate a cranium shape of which one of the following?
Select one:
a. Brachycephalic
b. Cloverleaf
c. Dolichocephalic
d. Fetal position does not change the head shape.

Answer 17

c. Dolichocephalic Correctx

Question 18

Which one of the following structures carries oxygenated blood from the umbilical vein to the inferior vena cava (IVC)?
Select one:
a. Foramen ovale
b. Ductus arteriosus
c. Ligamentous venous
d. Ductus venosus

Answer 18

d. Ductus venosus

Question 19

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

Answer 19

b. Two arteries and one vein Correctx

Question 20

The cranial bones ossify by \_\_\_\_\_\_ weeks.
Select one:
a. 12 
b. 14
c. 16
d. 18

Answer 20

a. 12 Correctx

Question 21

At what gestational week does the volume of amniotic fluid stop increasing?
Select one:
a. 28th
b. 30th
c. 32nd
d. 34th

Answer 21

d. 34th

Question 22

The widest transverse diameter of the skull and the proper level to measure the biparietal diameter (BPD) includes which one of the following structures?
Select one:
a. Peduncles
b. Fourth ventricle
c. Thalamus 
d. Corpus callosum

Answer 22

c. Thalamus Correctx

Question 23

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

Select one:

a. Vertex
b. Cephalic
c. Breech
d. Fundal

Answer 23

c. Breech

Question 24

The normal atrium of the lateral ventricle measures ______ mm and is considered abnormal when it reaches ______ mm.

Select one:

a. 6.5, 10
b. 8, 12
c. 10, 13
d. 11, 15

Answer 24

a. 6.5, 10 Correctx

Question 25

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

Answer 25

d. The right lobe is larger than the left lobe in the fetal liver.