ch 21 & 22 Flashcards

(55 cards)

1
Q

focal dilatation of the artery

A

aneurysm

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2
Q

placenta where the lobes are nearly equal in size and the cord inserts into the chorionic bridge of tissue that connects the two lobes

A

bilobed placenta

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3
Q

fatal condition associated with multiple congenital anomalies and absence of the umbilical cord

A

body stalk anomaly

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4
Q

very rare condition where there is a massive subchorionic thrombosis of the placenta secondary to extreme venous obstruction

A

breus mole

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5
Q

Attachment of the placental membranes to the fetal surface of the placenta rather than to the underlying placental margin

A

Extrachorial placenta

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6
Q

Bending, twisting, and bulging of the umbilical cord vessels mimicking a knot in the umbilical cord

A

false knot

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7
Q

Periumbilical abdominal wall defect, typically to the right of normal cord insertion that results in free bloating bowel within the amniotic fluid

A

gastroschisis

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8
Q

A condition characterized by multiple complex fetal anomalies and a short umbilical cord

A

Limb-body wall complex

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9
Q

Occurs when the umbilical cord inserts at the placental margin

A

marginal insertion/battledore placenta

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10
Q

Central anterior abdominal wall defect at the site of cord insertion into the fetal abdomen that results in abdominal organs protruding outside the abdominal cavity but contained by a covering membrane consisting of peritoneum, wharton jelly, and amnion

A

omphalocele

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11
Q

Term that refers to a thickened or hydropic placenta

A

Placentomegaly

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12
Q

linear, extra-amniotic tissue that projects into the amniotic cavity with no restriction of fetal movement

A

Synechia (asherman syndrome)

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13
Q

intraplacental area of hemorrhage or clot

A

thrombosis

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14
Q

Result of the fetus actually passing through a loop or loops of umbilical cord creating one or more knots in the cord

A

True knot

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15
Q

Method of assessing the degree of umbilical cord coiling, defined as the number of complete coils per cm length of cord

A

umbilical coiling index (UCI)

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16
Q

Vascular structure connecting the fetus and placenta that normally contains two arteries and one vein surrounded by wharton jelly

A

umbilical cord

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17
Q

failure of the normal physiologic gut herniation to regress into the abdomen resulting in a small amount of bowel protruding into the base of the umbilical cord

A

umbilical hernia

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18
Q

Tubular, anechoic structures found beneath the chorionic plate that correspond to blood filled spaces found at delivery

A

Venous lakes

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19
Q

Placental hydrops produces a
a- thin placenta with venous lakes
b- thick placenta with a ground like appearance
c- annular placenta with irregular contour
d-membranacea placenta with low resistance blood flow

A

Thick placenta with a “ground-glass appearance”

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20
Q

A “jelly like placenta” is associated with
a-venous lakes
b-IUGR
c-adjacent fibroid
d-degeneration

A

IUGR

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21
Q

A succenturiate placenta
a-has increased frequency in primigravidas
b-is ring shaped
c-most often have velamentous umbilical cord insertion
d- is edematous

A

most often have velamentous umbilical cord insertion

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22
Q

Circumvallate placental tissue is
a-flat and noted on approx 20% of placenta
b-associated with a thickened rolled chorioamniotic membrane
c-extremely rare
d-prone to fetal macrosomia

A

associated with thicken rolled chorioamniotic membrane

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23
Q

Risk factor for placenta previa include all except
a-previous c section
b-multiple gestation
c-previous elective abortions
d-hypertension

24
Q

A placenta is considered low lying if the inferior margin is
a-0.5 cm from internal os
b-adjacent to the interal os
c-within 2 cm of the internal os
d-posterior

A

Within 2 cm of the internal os

25
The most infiltrative form of placenta accreta is a-percreta b-accreta c-increta d-invasive
percreta
26
Attachment problems of the placenta are known as all except a-morbidly adherent placenta b-placetnal attachment disorder c-abdnormally invasive placenta d-infiltrative myometrial placenta
infiltrative myometrial placenta
27
Placental infarction is a-visualized at the fetal placement surface b-owing to obstructed spiral arteries c-multiple mhemorrhages into placental lakes d-factor in macrosomia
owing to obstructed spiral arteries
28
A benign vascular malformation of the placenta is a a-teratoma b-septal cyst c-lacuna d-chorioangioma
chorioangioma
29
Premature separation of all of part of the placenta from the myometrium is a-hemorrhage b-subchorionic c-abruption d-subdural
abruption
30
Linear, extra amniotic tissue projection into the amniotic cavity is noted often in pregnant women with hx of a-uterine curettage b-cervical dilation c-multiples d-stds
uterine curettage
31
amniotic band syndrome is a condition that a-involves free floating membrane b- is a result of rupture of the amnion without rupture of the chorion c- is not revealed in the 3rd trimester d- involves the uterine septum
is a result of rupture of the amnion without rupture of the chorion
32
A condition of pregnancy where the trophoblastic cells produce excessive amounts of beta human chorionic gonadotropin is a-multiparity b-fetal entrapment c- molar pregnancy d- compression syndrome
molar pregnancy
33
SUA is associated with all except a-cardiovascular malformations b- central nervous system defects c- musculoskeletal abnormalities d- skeletal dysplasia
skeletal dysplasia
34
PRUV, a common vascular variant describes a- a strictured right portal vein b- a duplicated right portal vein c- pancreatic right portal vein d- open right portal vein
open right portal vein
35
TTTS is caused by a- battledore umbilical insertion b- monochorionic twin pregnancies c- oligohydramnios d- discordant fetal size and polyhydramnios
battledore umbilical insertion
36
prenatal management of known umbilical pseudo and true cysts a- is not necessary because resolution is imminent b- typically referes to MRI for evaluation c- involves serial us exams d- displays echogenic characteristis near placenta insertion
typically refers to MRI for evaluation
37
Cord prolapse is defined as: a- compressed umbilical cord b- presentation of the umbilical cord in advance of the fetal presenting oart during labor and delivey c- excessive bending and twisting of the umbilical cord d- focal bulge or vascular protuberance of the umbilical cord
Excessive bending and twisting of the umbilical cord
38
Area between the myometrium and placenta
retroplacental
39
the functional layer of the endometrium in the gravid woman
decidua
40
Uterine contractions that do not lead to labor
Braxton-hicks
41
Inhalations and suspension of breath coupled with abdominal muscles contraction to increase abdominal pressure
Valsalva
42
white, cheese like coating if fetal skin
vernix caseosum
43
extra placental lobe smaller than the placenta
Bilobed placenta
44
Mucous tissue surrounding the umbilical cord
Wharton jelly
45
lobule or subdivision of the maternal placenta containing fetal vessels, chorionic villi, and the intervillous splace
cotyledons
46
The placenta is responsible for all but: a- hormonal functions b- nutritive functions c- respiratory functions d- excretory functions
hormonal functions
47
vascular resistance changes in the umbilical cord can be caused by all except a- umbilical cord compression b- maternal hypotension c- placental tumor d- maternal diabetes
maternal hypotension
48
The umbilical cord originates from fusion of the yolk sac stalk and the omphalomesenteric duct at approx
7 weeks
49
The maternal side of the placenta a- is homogeneous b- is made of approx 20 cotyledons c- is bordered by amnion d- attaches to the chorionic plate
is made of approx 20 cotyledons
50
the umbilical cord consists of
2 arteries, vein, and wharton jelly
51
The normal at term umbilical cord length is approx
52 to 61 cm
52
the normal term placenta weighs between
480 and 600 g
53
the normal placental thickness at 24 weeks gestation is less than
4cm
54
placental calcification may be caused by all except a-lung maturity b- maternal smoking c- parity d- season of the year
lung maturity
55
a normal mean circumference of the term umbilical cord is
3.8 cm