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30 Cards in this Set
- Front
- Back
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where does the umbilical cord insert?
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fetal side of placenta
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translucent membranes --> what side?
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fetal surface
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what is in the itervillous space?
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mom's blood
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membranous insertion of the cord is assoc w/ ...
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increased risk of fetal hemorrhage at delivery
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how many umbilical arteries and veins are there?
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2 arteries, one vein
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accessory lobes are assoc w/ ...
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increased risk of fetal bleeding at time of membrane rupture and could result in retained placental tissue
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pigmented macrophages in the membranes -->
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meconium staining
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what causes acute chorioamnionitis?
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ascending infection from lower gyn tract
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what is funisitis?
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PMNs in the umbilical cord (fetal origin)
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T or F: Chorionic villi are typicaly involved in acute chorioamnionitis
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FALSE
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Yellow membranes -->
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infection
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Green membranes -->
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meconium
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Brown membranes -->
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hemosiderin
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if there are numerous PMNs in the amnion and chorion, what you thinking?
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chorioamnionitis
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what is the hemolytic profile of GBS?
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beta. (GROUP B = BETA)
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What is chronic villitis?
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transplacental hematogenous dissemination of infx
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What is necrosis of chorinoic villi 2'ary to decreased or interrupted MATERNAL blood supply?
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placental infarct
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when do you see fibrinoid necrosis w/ foamy macrophages with acute atherosis?
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preeclampsia
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when do you most commonly see placental infarcts?
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preeclampsia
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what are the subtypes of placenta accreta?
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Accreta Adheres
Increta Invades Percreta Penetrates |
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separate placental plates -->
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dichorionic
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T or F: fused placental plates are always monochorionic
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false. they can be mono or di-chorionic
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T or F: dizygotic will always have diamniotic dichorionic pregnancy
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TRUE
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T or F: The chromosomes in complete moles are all paternally derived
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TRUE
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what is abruptio placenta?
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clinical term for premature separation of the placenta characterized by pain, uterine bleeding, contractions, fetal distress +/- DIC
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What is a retroplacental hematoma?
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pathologic correlate to aburuption; grossly identifiable hematoma along the maternal surface that often compresses the maternal surface
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what is the pathogenesis of placenta accreta?
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deficiency of maternal decidua at implantation site
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placenta adherent to the myometrium -->
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placenta accreta
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placenta has infiltrated into the myometrium wall -->
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placenta increta
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monochorionic twinning implies -->
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monozygous twins
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