Penny OB Exam - CH 22-25
normal gestational sac will grow-
1 mm per day
the conceptus is referred to as an embryo until after what wk-
10
NT measures are typically obtained between:
11-14 weeks
which will also by absent with agenesis of the corpus callosum-
CSP
number of pregnancies
Gravidity
most common form of GTD-
complete molar pregnancy
membrane in the early gestation located across from the decidua basalis-
decidua capsularis
in 1st tri, normal hCG levels-
double every 48 hrs
which of the following is not a typical indication for a 1st tri sono
dx of fetal gender
most common cause of pelvic pain with pregnancy is-
ectopic pregnancy
with anencephaly, the MSAFP value is-
elevated
with gastroschisis, MSAFP level is-
elevated
hormone produced by the corpus luteum, maintains the thickened endo-
progesterone
2nd trimester typically refers to weeks-
13-26
Fertilization typically occurs within - after
24 hrs
produced by placenta EXCEPT-
AFP
protein that is produced by the yolk sac, fetal GI, and fetal liver-
AFP
would not be decreased in the presence of Edwards syndrome-
All would be decreased - estriol, hCG, AFP
The anechoic midline brain structure located between the frontal horns and the lateral ventricles is the:
CSP
quadruple screen includes an analysis of all of the following EXCEPT-
PAPP-A
all of the following are associated with an abnormal NT EXCEPT-
Trisomy 16 (Dandy Walker malformation)
artifact produced when the sound beam is barely attenuated through a fluid or a fluid containing stricture-
acoustic enhancement
The area located post to the broad ligaments and adjacent to uterus-
adnexa
all of the following are clinical factors for an ectopic pregnancy EXCEPT-
adnexal ring
all of the following are contributing factors for an ectopic pregnancy EXCEPT-
advanced paternal age
common site of fertilization is within -
ampulla of the uterine tube
most common location of an ectopic pregnancy is the-
ampullary portion of the uterine tube
would not produce an elevation in hCG-
anembryonic pregnancy
which of the following is not part of Apert syndrome-
aqueductal stenosis
The normal BPP, amniotic fluid pocket should measure-
at least 1cm in 2 perpendicular planes
what part of the lateral ventricle is routinely measured within the fetal cranium -
atrium
all of the following are sonographic findings consistent with ectopic pregnancy EXCEPT-
bilateral, multiloculated ovarian cysts
the stage of the conceptus that implants within the decidualized endometrium
blastocyst
The term for the fetal presentation that is head down-
cephalic
forms of fetal presentation is the most common-
cephalic
Which of the following is produced by the fetus-
cfDNA
malignant form of GTD-
choriocarcinoma
in early gestation, where is the secondary yolk sac located
chorionic activity
what is the outer membrane of the gestation-
chorionic sac
with a normal pregnancy, the first structure noted within the decidualized endo is the -
chorionic sac
During a 12-week sonogram, bilateral echogenic structures are noted within the lateral ventricles of the fetal cranium. These structures most likely represent:
choroid plexuses
most common pelvic mass associated with pregnancy is the -
corpus luteum cyst
normal appearing 7wk IUP is ID. Within the adnexa, an ovarian cystic structure with a thick, hyperechoic rim is also discovered, what does this ovarian mass most likely represent-
corpus luteum cyst
ovarian cyst that develops after ovulation has occurred is-
corpus luteum cyst
The first sonographically identifiable sign of pregnancy is the:
decidual reaction
with a miscarriage, the serum hCG value will be-
decreased
another term for the due date -
estimated date of confinement
indication for 3rd tri sono EXCEPT-
eval nuchal translucency
All may be visualized at the correct level of the head circumference EXCEPT-
falx cerebelli
The double fold of dura mater that divides the cerebral hemispheres is the:
falx cerebri
all are observed during a BPP EXCEPT-
fetal circulation
least likely indication for a 1st tri sono-
fetal lie
not part of the biophysical profile-
fetal swallowing
BPP scoring is conducted -
for 30 min
With what structure does the posterior fossa cyst associated with DWM communicate?
fourth ventricle
fetal presentation when the fetal buttocks are closest to the cx
frank breech
something idiopathic-
from an unknown cause
another name for the chorionic sac-
gestational sac
dominant follicle before ovulation-
graafian
trophoblastic cells produce-
hCG
what hormone maintains the corpus luteum during pregnancy-
hCG
triple screen includes-
hCG, estriol, alpha-fetoprotein
which of the following is thought to be caused by bilateral occlusion of the fetal internal carotid arteries-
hydranencephaly
dilation of renal collecting system secondary to obstruction of normal urine flow-
hydronephrosis
The fetal presentation is determined by-
identifying internal os of the cx
which of the following is located on both sides of the midline-
lateral ventricles
in TPAL, L is-
live births
all of the following may be sono findings in the presence of an ectopic pregnancy EXCEPT-
low beta hCG
all of the following are consistent with a complete hydatidiform mole EXCEPT-
low hCG
compared, normal IUP, the ectopic pregnancy will-
low hCG
which of the following is most likely metastatic location for GTD-
lungs
often used to medically treat an ectopic pregnancy-
methotrexate
all of the following would be associated with a lower than normal hCG level EXCEPT-
molar pregnancy
the anechoic space along the posterior aspect of the fetal neck
nuchal translucency
which of the following would lead to an elevated MSAFP-
omphalocele
location for an ectopic pregnancy would be least likely-
ovary
described as number of pregnancies in which pt has given birth to fetus at or beyond 20wks-
parity
also referred to as trisomy 13-
patau syndrome
The migration of the embryologic bowel into the base of the umbilical cord at 9 weeks is referred to as:
physiologic bowel herniation
painless 2nd trimester vaginal bleeding is most often associated with
placenta previa
premature separation of the placenta from the uterine wall-
placental abruption
artifact caused by attenuation of the sound beam-
posterior shadowing
clinical manifestations of supine hypotensive syndrome include all EXCEPT-
proteinuria
during 1st trimester sono, you note a round, cystic structure within the fetal head. this most likely represents-
rhombencephalon
what artifact appears as a solid streak or a chain or parallel bands radiating away from a structure-
ring down
The development of fluid-filled cleft within the cerebrum is consistent with:
schizencephaly
all of the following are clinical findings consistent with a complete molar pregnancy EXCEPT-
small for dates
a myelomeningocele is associated with-
spina bifida
all are sono findings of Arnold Chiari II malformation EXCEPT-
strawberry sign
A sono exam was performed on a pregnancy patient who complained of vaginal bleeding. Sonographically crescent shaped anechoic area is noted adjacent to the gestational sac. The gestational sac contained a 6 week single live IUP. What is the most likely diagnosis?
subchorionic hemorrhage
reduction in blood return to the maternal heart caused by the gravid uterus compressing the maternal IVC describes-
supine hypotensive syndrome
term for something that can cause birth defects or abnormalities within the embryo or fetus, such as alcohol and certain infections-
teratogen
AC should include all EXCEPT-
the kidneys
the choroid plexus cyst could be associated with an increased risk of -
trisomy 18
least likely associated with an elevation of MSAFP-
turner syndrome
structure connects the embryo to the yolk sac-
vitelline duct
best describes optimal instance to take the femur length measurement-
when the long axis of the femoral shaft is perpendicular to the sound beam
first structure noted within the gestational sac is-
yolk sac
structure that lies within the extraembryonic coelom-
yolk sac
The structure created by the union of sperm and egg is the :
zygote