OB

Question 1

the yolk sac generally disappears by week __?

Answer 1

12

Question 2

the term threatened abortion/miscarriage refers to

Answer 2

vaginal bleeding before 20 weeks

Question 3

empty GS with a MSD of ____ on TV indicates ____

Answer 3

25mm, blighted ovum/anembryonic pregnancy

Question 4

with a beta of _______ the IUP should be seen on TV ultrasound

Answer 4

1500-2500

Question 5

with a beta of _______ the IUP should be seen on TA ultrasound

Answer 5

6500

Question 6

normal cephalic index

Answer 6

80

Question 7

____ results in a lower cephalic index, ____ results in a greater cephalic index

Answer 7

dolicocephaly, brachycephaly

Question 8

a Breus mole referes to..

Answer 8

a massive subchorionic thrombosis

Question 9

a short umbilical cord is associated with

Answer 9

limb-body wall complex

Question 10

body stalk anomaly describes

Answer 10

complete absence of the umbilical cord

Question 11

most specific sign for true knot in umbilical cord is

Answer 11

hanging noose sign

Question 12

describe the “halo sign”

Answer 12

with fetal demise, edema surrounding skull

Question 13

which clefting combination is most likely the result of a chromosomal abnormality

Answer 13

Cleft lip and cleft palate (cleft lip can often be independant of chromosomal abn)

Question 14

the fleshy protrusion in the face associated with holoprosencephaly is called

Answer 14

proboscis

Question 15

SF absent ACC

Answer 15

teardrop ventricles (colpocephaly), high riding 3rd ventricle, sunburst appearance of sulci and gyri,

Question 16

teardrop ventricles, banada cerebellum, lemon head, small 3rd ventricle - are all SF of which malformation?

Answer 16

arnold chiari 2

Question 17

describe the measurements of normal, mild and severe ventriculomegaly

Answer 17

10mm, 10-15mm, >15mm

Question 18

aqueduct of sylvius connects..

Answer 18

the 3rd and 4th ventricle

Question 19

_____ is the m/c cause of ventriculomegaly/hydrocephaly

Answer 19

aqueduct stenosis

Question 20

the risk of caudal regression syndrome is highly increased with

Answer 20

maternal diabetes

Question 21

a highly active fetus is probably associated with..?

Answer 21

meroanencephaly

Question 22

which side is most common for congenital diaphragmatic hernia

Answer 22

left

Question 23

why does gastroscisis have a better prognosis than omphalocele?

Answer 23

because it is rarely associated with other abnormalities (other than bowl malformations)

Question 24

the most common form of cyanotic heart disease

Answer 24

tetralogy of fallot

Question 25

hyperthyroidism increases the risk of which abnormality?

Answer 25

craniosynostosis

Question 26

cephaloceles are a common finding with which syndrome?

Answer 26

meckel gruber

Question 27

m/c intracranial tumour

Answer 27

teratomas

Question 28

a finding of vein of galen aneurysm indicates the probable finding of?

Answer 28

hydrops

Question 29

m/c cause of hypertelorism

Answer 29

front cephalocele

Question 30

m/c cause of hypotelorism

Answer 30

holoprosencephaly and Tri 13

Question 31

micrognathia can be seen with

Answer 31

Tri 13, 18

Question 32

cystic hygroma m/c found with

Answer 32

turner's

Question 33

the dominant form of achondroplasia

Answer 33

heterozygous

Question 34

rhizomelia is

Answer 34

short proximal limbs

Question 35

a compressible skull is seen with

Answer 35

osteogenesis imperfecta

Question 36

telephone receiver bones are seen with

Answer 36

thanatophoric dysplasia

Question 37

shortening of the entire limb is called

Answer 37

micromelia

Question 38

shortening of the distal limb is

Answer 38

acromelia

Question 39

another word for club foot

Answer 39

talipe equinovarus

Question 40

lung maturity indicator

Answer 40

distal femoral epiphysis (secondary ossification site) measures >/=3mm and the proximal tibial epiphysis is visible

Question 41

most skeletal dysplasias are mainly associated with micromelia, except ____ which is associated with rhizomelia

Answer 41

achondroplasia

Question 42

difference between achondrogenesis and thanatophoric dysplasia

Answer 42

achondrogenesis has short trunk, thanatophoric dysplasia has normal trunk

Question 43

to rule out all forms of holoprosencephaly

Answer 43

see the CSP

Question 44

parents of normal stature result in

Answer 44

thanatophoric dysplasia

Question 45

compressible skull can be seen with

Answer 45

OI 2, and hypophosphatasia

Question 46

difference between OI 2, and hypophosphatasia

Answer 46

hypophos - rarely fractures

Question 47

campomelic dysplasia is usually lethal with

Answer 47

tracheomalacia

Question 48

persistent hand clenching is seen with

Answer 48

T18

Question 49

polydactyly next to the thumb

Answer 49

preaxial

Question 50

polydactyly next to the pinky

Answer 50

post axial

Question 51

lobster claw hand

Answer 51

ectrodactyly

Question 52

m/c pathology of lower limb

Answer 52

club foot

Question 53

rockerbottom foot ax with

Answer 53

T18

Question 54

hypoplastic left heart

Answer 54

ax with turners in females, the most common cause of cardiac death in a neonate

Question 55

tricuspid regurgitation is seen with

Answer 55

ebsteins anomaly

Question 56

tetralogy of fallot

Answer 56

overriding aorta, VSD, pulmonary stenosis, right ventricle hypertrophy

Question 57

CCAMs get their blood from

Answer 57

pulmonary circulation

Question 58

omphaloceles are ax with which disorders?

Answer 58

beckwith wiedmeann, turners, tri 13, 18

Question 59

cloacal extrophy

Answer 59

OEIS complex: omphalocele, extrophy bladder, imperforate ANUS, spina bifida

Question 60

meckel gruber associated with

Answer 60

microcephaly, occipital cephalocele, polycystic kidneys, polydactyly (think MOPP)

Question 61

week range for amniocentesis

Answer 61

14-20

Question 62

week range for CVS

Answer 62

9-12

Question 63

tricuspid and pulmonary trunk atresia is found with

Answer 63

hypoplastic right heart

Question 64

mitral valve and aorta atresia is found with

Answer 64

hypoplastic left heart