Lecture 5A - Multifetal Gestations

Question 1

5 factors that may increase incidence for multifetal pregnancy (MARGE)

Answer 1

maternal age
ART
race
genetics
environment

Question 2

what are 3 clinical signs for multifetal gestations

Answer 2

large gestational age (LGA)
multiple heart beats
increased maternal serum AFP (MSAFP)

Question 3

multifetal gestations increase risk of (4) (PIGT)

Answer 3

Preterm labour
IUGR
Gestational diabetes
TTTS

Question 4

what is chorionicity

Answer 4

number of chorionic membranes per placenta

Question 5

what is amniocity

Answer 5

number of amniotic membranes (sacs)

Question 6

T/F the earlier the split, the more independent the development

Answer 6

true

Question 7

% of monozygotic vs dizigotic

Answer 7

30% mono

70% dizygotic

Question 8

monochorionic diamniotic splits at what stage

Answer 8

blastocyst stage

Question 9

blastocyst implants at what stage

Answer 9

mono/mono

Question 10

theta sign

associated with what sort of membrane

Answer 10

DCDA

thick membrane

Question 11

T sign

associated with what sort of mem

Answer 11

mono/di

thin membrane

Question 12

another name for theta sign

Answer 12

twin peak sign DCDA

Question 13

report for metal fetal preg include (4)

Answer 13

chorionicity
amniocity
fetal #
fetal position

Question 14

yolk sacs equals

Answer 14

amniotic sacs

Question 15

what is superfecundation

Answer 15

multiple fertilizations from multiple acts of sex close together

Question 16

what is superfetation

Answer 16

fertilization during pregnancy