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OB-Hagen > Final Q4 T2 > Flashcards

Final Q4 T2 Flashcards

1
Q

Hallmark sign for agenesis of the corpus collosum

A

Teardrop shaped ventricle

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2
Q

Cordocentesis is more commonly used for what procedure

A

Guidance for transfusions to treat fetal isoimmunization

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3
Q

An isolated unilateral cleft lip defect commonly originates on the ____ side of the face

A

On the left side of the face

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4
Q

Which of the following statements about epignathus is false?

A) Swallowing is not impaired in fetuses with epignathus

B) A small stomach may be present

C) An epignathus is a teratoma located in the oropharynx

A

Swallowing is not impaired

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5
Q

Most common aneuploidy condition

A

Trisomy 21

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6
Q

Reasons to perform an amniocentesis include all of the following except:

A) multiple gestations
B) maternal age
C) abnormal AFP

A

Multiple gestations

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7
Q

The sonographic findings of cranial anomalies, choroid plexus cysts, clenched hands, and rocker bottom feet may be seen in:

A

Trisomy 18

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8
Q

A large cystic hygroma, hydrops, coarctation of the aorta may be seen in a fetus with:

A

Turners syndrome

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9
Q

Ventriculomegaly is when lateral ventricle measures greater than:

A

10mm

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10
Q

The differential considerations for anencephaly include all of the following except:

A)microcephaly
B)cephalocele
C)acrania
D)arachnoid cyst

A

Arachnoid cyst

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11
Q

Small chin:

A

Micrognathia

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12
Q

Results from a malformation of the lymphatic system

A

Cystic hygroma

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13
Q

Differential for cystic hygroma includes all of the following except:

A) encephalocele
B) goiter
C) cystic teratoma
D) myelomeningocele

A

Goiter

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14
Q

This supplement has been shown to significantly reduce the likelihood of neural tube defects

A

Folic acid

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15
Q

A lack of sulci within the fetal cerebrum is an indication of:

A

Lissencephaly

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16
Q

An open spinal defect characterized by a protrusion of meninges and spinal cord through the defect, usually within a meningeal sac

A

Meningomyelocele

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17
Q

The maxilla and orbits are ____ imaged in the true sagittal plane

A

Not

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18
Q

Fetuses younger than expected will have ____ afp levels

A

Lower than expected

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19
Q

An elongated forehead in the sagittal plane and triangular in shape in the axial plane:

A

Trigonocephaly

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20
Q

Associated with meckel-gruber syndrome

A

Encephalocele

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21
Q

term used to describe the herniation of meninges and brain through a calvarium defect

A

Encephalomeningocele

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22
Q

The sonographic findings of increased nuchal thickening, duodenal atresia, cardiac anomalies, and echogenic bowel may be seen with

A

Trisomy 21

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23
Q

Trisomy 13 is also known as

A

Patau syndrome

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24
Q

Elevated MSAFP levels are reported as

A

Multiples of the median(MOM)

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25
Q

Imaging plane best used to image cleft lip and palate

A

Modified coronal

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26
Q

The optimal collection site for an amniocentesis includes

A

Away from the central portion of
the placenta

away from the fetus

away from the umbilical cord

toward the maternal midline

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27
Q

Large space between the first and second toes:

A

Sandal gap

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28
Q

And early non-invasive means of assessing the risk of aneuploidy

A

Nuchal translucency

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29
Q

The most common congenital anomaly of the face

A

Cleft lip

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30
Q

What shape is the cerebellum when a spinal defect is present

A

Banana

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31
Q

The best imaging plane to Sonographically evaluate the spine for spina bifida

A

Axial/transverse

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32
Q

A fluid filled cystic structure filled with CSF that results from hemorrhage and communicates with the ventricular system

A

Porencephaly

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33
Q

a vein of Galen malformation will have ______ flow on Doppler

A

Turbulent

34
Q

Dangling choroid sign is associated with

A

Ventriculomegaly

35
Q

Most common neck mass in fetus

A

Cystic hygroma

36
Q

Most common reason for elevated afp

A

Incorrect gestational dates

37
Q

Facial anomalies occur as ____ defects or part of a syndrome

A

Isolated

38
Q

A strawberry shaped skull is associated with

A

Edwards syndrome/trisomy 18

39
Q

Cephaloceles are more commonly involved in which skull bone

A

Occipital

40
Q

Holoprosencephaly and Probiscis are most likely to be found in a fetus with

A

Trisomy 13

41
Q

The forebrain forms into the

A

Prosencephalon

42
Q

Pregnancy associated plasma protein A(PAPP-A) levels ____ throughout pregnancy

A

Increase

43
Q

Most severe form of holoprosencephaly characterized by a single common ventricle and malformed brain

A

Alobar

44
Q

Anencephaly is an example of what type of condition

A

Multifactorial

45
Q

Neck teratomas are usually located _____

A

Anteriorly

46
Q

Oral teratomas are referred to as:

A

Epignathus

47
Q

Differential considerations of dandy-walker should include

A

Arachnoid cyst

48
Q

Neural tube defect characterized by a lack of development of the cerebral and cerebellar hemispheres and cranial vault and is fatal

A

Anencephaly

49
Q

Test used in the 1960’s to relieve polyhydramnios but is now used to evaluate for chromosomal abnormalities

A

Amniocentesis

50
Q

Most likely fetal cranial finding with TORCH infection

A

Intracranial calcifications

51
Q

After amniocentesis, the sonographer should demonstrate and document

A

Fetal cardiac activity

52
Q

Following an intracranial hemorrhage, a cyst is noted within the cerebrum that communicates with the lateral ventricles:

A

Porencephaly

53
Q

Head anomaly characterized by the presence of a single primitive ventricle

A

Holoprosencephaly

54
Q

Craniosynostosis may be defined as

A

Premature closure of the cranial sutures

55
Q

Beta-hCG can be assessed in maternal serum in the first trimester to evaluate for an increased risk of which anomaly

A

Trisomy 21/ Down syndrome

56
Q

Diencephalon develops into the

A

Thalamus

57
Q

Occurs due to failure of the primary and secondary palate to fuse

A

Cleft lip

58
Q

Term used to describe the herniation of the meninges and brain through a calvarium defect

A

Encephalocele

59
Q

An isolated unilateral cleft lip defect commonly originates on the ____ side of the face

A

Left

60
Q

Sonographic finding of a fluid-filled cranium with absence of cerebral tissue is consistent with:

A

Hydranencephaly

61
Q

Most common open neural tube defect

A

Anencephaly

62
Q

Double bubble denotes:

A

Dilated duodenum next to the fetal stomach

63
Q

Probiscis suggests what abnormality

A

Holoprosencephaly

64
Q

Chromosomal abnormality associated with theca lutein cysts

A

Triploidy

65
Q

Development of a fluid-filled cleft within the cerebrum is consistent with

A

Schizencephaly

66
Q

Absence of the CSP is a distinguishing characterized of

A

Agenesis of the corpus collosum

67
Q

Ventriculomegaly coupled with an enlargement of the fetal head is called

A

Hydrocephalus

68
Q

AFP is produced in early gestation by what stucture

A

Yolk sac

69
Q

Banana-shoes cerebellum and lemon-shaped head are characteristics of

A

Arnold-Chiari malformation

70
Q

Macroglossia is most commonly found with

A

Beckwith-Wiedemann syndrome

71
Q

A condition in which a complete or partial absence of the cranial bones is

A

Acrania

72
Q

MSAFP levels peak at ____ weeks

A

15-18

73
Q

Anomaly characterized by the presence of a posterior fossa cyst and the splaying of the cerebral hemispheres

A

Dandy-Walker malformation

74
Q

The quadruple screen evaluates:

A

AFP
Unconjugated estriol
HCG
Inhibin A

75
Q

Method of genetic testing that is performed at 10-14 weeks gestation and allows results to be available within 1-week

A

Chorionic villus sampling (CVS)

76
Q

Kleeblattschadel is also referred to as

A

Clover-leaf skull

77
Q

An obstruction caused by a ventricular defect is referred to as ______ hydrocephalus

A

Noncommunicating

78
Q

Obstruction outside of the ventricular system is referred to as _______ Hydrocephalus

A

Communicating

79
Q

Club foot is also referred to as:

A

Talipes

80
Q

What form of holoprosencephaly is characterized by a common ventricle, hypotelorism, and a normally placed nose with a single nostril

A

Cebocephaly

OB-Hagen (17 decks)

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