Fetal Environment And Maternal Complications Flashcards

1
Q

A definitive placenta may not be seen until after:

A

10-12 weeks

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2
Q

Additional, smaller lobes separate from the main segment of placenta

A

Succenturiate lobe/ accessory lobe

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3
Q
  • Abnormally shaped placenta, curled up edges.

- may lead to abruption, bleeding

A

Circumvallate placenta

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4
Q

Placenta thickness should not exceed:

A

4cm

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5
Q

Element of placenta closest to the fetus

A

Chorionic plate

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6
Q

Placental grading: uninterrupted chorionic plate and homogeneous

A

Grade 0

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7
Q

Placental grading: subtle indentations on the chorionic plate, small calcifications within placental substance

A

Grade 1

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8
Q

Placental grading: moderate indentations in chorionic plate with “comma-like” calcifications in placental substance

A

Grade 2

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9
Q

Placental grading: prominent indentations in chorionic plate that extend into the basal layer with diffuse echogenic and anechoic areas noted within the placental substance.

A

Grade 3

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10
Q

Placental grading:

A

Grade 0

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11
Q

Placental grading:

A

Grade 1

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12
Q

Placental grading:

A

Grade 2

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13
Q

Placental grading:

A

Grade 3

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14
Q

Placenta covering the internal os of cervix

A

Placenta previa

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15
Q

The placenta should be evaluated for previa after ___ weeks

A

20 weeks

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16
Q

Placenta covers internal os completely

A

Total/complete previa

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17
Q

Placenta partially covers internal os

A

Partial previa

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18
Q

Placenta lies at the edge of the internal os

A

Marginal previa

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19
Q

Placenta edge extends into lower uterine segment and is less than 2 cm from the internal os

A

Low lying placenta

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20
Q

Fetal vessels resting over the internal os

A

Vasa previa

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21
Q

Cord insertion associated with vasa previa:

A

Velamentous cord insertion

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22
Q

Premature separation of placenta from uterine wall

A

Placental abruption

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23
Q

Most severe placental abruption

A

Complete abruption

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24
Q

Type of placental abruption: development of retroplacental hematoma

A

Complete abruption

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25
Type of placental abruption: only a few centimeters of separation
Partial abruption
26
Most common placenta hemorrhage
Subchorionic hemorrhage
27
Type of placental abruption: lies at the edge of the placenta
Marginal abruption/ Subchorionic hemorrhage
28
Abnormal adherence of the placenta to the myometrium
Placenta accreta
29
Invasion of placenta within the myometrium
Placenta increta
30
Penetration of placenta through serosa and possibly into adjacent organs
Placenta percreta
31
Most common placental tumor
Chorioangioma
32
Most common location of chorioangioma
Adjacent to umbilical cord insertion site
33
Most common abnormality of the umbilical cord
2VC/ single umbilical artery
34
Cord insertion: at the edge of placenta
Marginal
35
Marginal cord insertion aka
Battledore
36
Cord insertion: insertion into the membranes beyond the placental edge
Velamentous
37
Umbilical cord encircling the neck is termed
Nuchal cord
38
Umbilical cord forms from fusion of the the ___ and ____
Fuision of the yolk stalk and Vitelline duct/omphalomesenteric duct
39
Gelatinous material covering umbilical cord
Whartons jelly
40
Most common tumor of the umbilical cord
Hemangioma
41
Cystic mass within umbilical cord
Allantoic cyst
42
Allantoic cyst is most commonly located
Close to the fetal abdomen
43
Umbilical cord hemangiomas are most often located
Close to cord insertion to placenta
44
Maximum vertical pocket should measure atleast:
2cm
45
Most common congenital infection
Cytomegalovirus
46
Most common cause of intellectual disability in the United States
Fetal Alcohol Syndrome(FAS)
47
IUGR is defined as estimated fetal weight below the ___ percentile
Below the 10th percentile
48
Obese fetus is defined as having an EFW of ___ percentile
Over the 90th percentile
49
Sonographic findings of cervical incompetence:
- Cervical length <3cm | - funneling if cervix (V or U shaped)
50
Hydrops aka
Anasarca
51
Accumulation of fluid in atleast two body cavities
Hydrops
52
Prevention of RH isoimmunization:
RhoGAM
53
Maternal Rh sensitization, her first pregnancy will develop:
Normally, the second pregnancy will be the one that is attacked by her antibidies
54
Pregnancy induced hypertension and proteinuria
Preeclampsia
55
Postpartum uterus returns to its nongravid size ____ weeks after delivery
6-8 weeks after delivery
56
#1 cause of painless bleeding in 3rd trimester
Placenta previa
57
Hydrops caused by rh incompatibility
Immune hydrops
58
Fetal hydrops caused by congenital anomalies and infections
Nonimmune hydrops
59
Most common pathological cause of painful bleeding in 3rd trimester
Placental abruption
60
Lab values of chorioangioma
Increased MSAFP