Point Questions OB 2

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during the sonographic exam the sonographer identifies polyhydramnios, a small abdominal circumference and a chest mass. what is the most likely cause for these findongs

congenital diaphragmatic hernia

which of the following is a cause for immune fetal hydrops

R H incompatibility

choose the malformation occuring most often in male fetuses

bladder extrophy

which if the following is the ratio of B P D to O F D

cephalic index - C I

identify the anatomy imaged on the axial plane at the ventricle level

choroid plexus

select the term that describes abnormal digit position

clyinodactyly

define aplasia

complete absence of a body part

which process describes the finding of cystic replacement of fetal lung tissue

congenital multicystic adenomatoid malformation aka C C A M

what term does I S O U G use to describe the fetal head

cranial

sonographic characteristic of a cystic hygroma

cystic mass with septa

which of the following demonstrates cystic dilations of the 4th ventricle

dandy-walker malformation

when does the neural tube completely close

day 26

identify the cause of pulmonary hyperplasia

oligohydramnios

wshat portion of the femur do you measure to obtain the length

osseous femoral diaphysis

term describing the ability of embryonic cells to differentiate into any cell type

pluripontent

which of the following describes the umbilicl cord hernia

protrusion of a small amount of intestine at the umbilicas

identify the congenital urinary problem which results in the absence of the abdominal muscle

prune belly syndrome

which of the following is the incomplete development of lung tissue

pulmonary hypoplasia

choose the head end of the neural tube

rostral

which of the following is a finding seen with agenesis of the corpus collusum

tear-dropped shaped ventricle

identify the anatomy imaged on the axial plane at the B P D level

thalami

identify the anatomical landmarks used to determine the correct level to measure B P D

thalamus, falx, C S P

where on the image is the fetal spine in the breech fetus faceing posterior

top of the image

cerebellar hyperplasia with herniation into the spinal canal describes which of the following malformations

type 4 Arnold-Chiari malformation

what is the sonographic appearance of type 1 C C A M

unilateral 2.5 cm cyst with internal echogenic material

identify the term describing the front or belly of the fetus

ventral

choose the left mean renal volume for a 35 week fetus

13.2 cm cubed

what is the A P diameter of the cerebellar vermis at 33.2 weeks

20.1 mm

what is the head circumference for a 29 week fetus in the 95th percentile

296 mm or 29.6 cm

what is the gestational age for a fetus with B P D of 82 mm

33 Weeks

select the imaging mode that adds motion to a static data sheet

4 D

how long is the fetal kidney at 35 weeks

4.2 cm or 42 mm

stage where the neural crest cells organize into the neural tube

7

what measurement is the most important indicator of fetal weight

A C - abdominal circumference

what is the correct method to measure B P D

Transverse outer to inner

define dolichocephaly

a long narrow head

select the sonographic characteristic of anecephaly

absent neural tissue

a fetus with a large single ventricle, prominent fused thalami, cyclopia, and a median cleft lip has which type of defect

alobar holoprosencephaly

select the fetal cause for immune hydrops

anemia

which of the following is the congenital absence of one or both eyes

anophthalmia

choose the abnormal development of the first portion of the small bowel

duodenal atresia

which term describes brighter echoes than the surrounding tissue

echogenic

which term describes the in utero fetal position

fetal lie

choose the sonographic finding seen with renal agenisis

flattened adrenal gland in the renal fossa

what fetal weight is considered macrosomia

greater than 4000 g

which of the following is the most common anomaly found with duodenal atresia

growth retardation

identify the anatomy closest to the cervix in the vortex lie

head

what type of resolution describes the minimum distance between 2 bright echoes perpendicular to the beam path

lateral resolution

which anatomy indicates the correct level to measure the abdominal circmfrence

left portal vein


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