Chapter 22 (Obstetric Sonography Overview)

Question 1

All of the following may be visualized at the correct level of the head circumference except:
A. third ventricle
B. thalamus
C. Cavum
D. Falx cerebelli

Answer 1

D. Falx cerebelli

Question 2

Typically with a miscarriage, the serum hCG value will be:

Answer 2

decreased

Question 3

Typically, with anencephaly the maternal serum alpha-fetoprotein value will be :

Answer 3

elevated

Question 4

The quadruple screen includes an analysis of all of the following except:
A. hCG
B. alpha-fetoprotein
C. inhibin A
D. pregnancy associated plasma protein A

Answer 4

D. pregnancy associated plasma protein A

Question 5

Typically, with gastroschisis, the maternal serum alpha-fetoprotein value will be

Answer 5

elevated

Question 6

The reduction of blood return to the maternal heart caused by the gravid uterus compressing the IVC describes:

Answer 6

supine hypotensive syndrome

Question 7

The second trimester refers to what weeks?

Answer 7

13-26

Question 8

The clinical manifestations of supine hypotensive syndrome include all except:
A. proteinuria
B. tachycardia
C. nausea
D. pallor

Answer 8

A. proteinuria

Question 9

Painless second trimester bleeding is most often associated with:

Answer 9

placenta previa

Question 10

All of the following are observed during a BPP except:
A. fetal tone
B. thoracic movement
C. fetal breathing
D. fetal circulation

Answer 10

D. fetal circulation

Question 11

Which would not be decreased in the presence of Edwards syndrome?
A. estriol
B. hCG
C. alpha-fetoprotein
D. all would be decreased

Answer 11

D. all would be decreased

Question 12

All of the following are produced by the placenta except:
A. alpha-fetoprotein
B. hcG
C. Pregnancy associated Plasma protein A
D. inhibin A

Answer 12

A. alpha-fetoprotein

Question 13

A myelomeningocele is associated with:

Answer 13

spina bifida

Question 14

The anechoic space along the posterior aspect of the fetal neck is the:

Answer 14

nuchal translucency

Question 15

The premature separation of the placenta from the uterine wall describes:

Answer 15

placental abruption

Question 16

Something that is idiopathic is said to be:

Answer 16

from an unknown cause

Question 17

What is the most common form of fetal presentation?

Answer 17

cephalic

Question 18

Fetal presentation is determined upon the fetal part closest to the:

Answer 18

internal os of the cervix

Question 19

What is the fetal presentation when the fetal buttocks are closest to the cervix?

Answer 19

frank breech

Question 20

Which of the following would not typically produce an elevation in hCG?
A. down syndrome
B. anembryonic pregnancy
C. triploidy
D. molar pregnancy

Answer 20

B. anembryonic pregnancy

Question 21

The triple screen usually includes an analysis of :

Answer 21

hcG, alpha-fetoprotein, and inhibin A

Question 22

The dilation of the renal collecting system secondary to the obstruction of normal urine flow defines:

Answer 22

hydronephrosis

Question 23

The physiologic ovarian cyst that develops after ovulation has occurred is the:

Answer 23

corpus luteum cyst

Question 24

The protein that is produced by the yolk sac, fetal GI tract, and the fetal liver is the:

Answer 24

alpha-fetoprotein

Question 25

What best describes the optimal instance to take the femur length measurement:

Answer 25

When the long axis of the femoral shaft is perpendicular to the sound beam

Question 26

The AC should include all of the following except:
A. fetal stomach
B. the fetal thoracic spine
C. the umbilical vein
D. the kidneys

Answer 26

the kidneys

Question 27

Which artifact is produced when the sound beam is barely attenuated through a fluid?

Answer 27

posterior enhancement

Question 28

Which artifact is caused be attenuation of the sound beam?

Answer 28

posterior shadowing

Question 29

Which of the following would most likely not be associated with an elevated maternal serum alpha-fetoprotein?
A. anencephaly
B. down syndrome
C. meningocele
D. myelomeningocele

Answer 29

B. down syndrome

Question 30

What is AKA trisomy 13?

Answer 30

Patau syndrome