Multiple Gestation

Question 1

Why has the incidence of multiple gestation increased?

Answer 1

increase in ovulation induction agents and ARTs

Question 2

Triplet and quadruplet pregnancies are associated with this neurological disorder.

Answer 2

cerebral palsy

Question 3

Identical twins are also known as:

Answer 3

monozygotic

arise from one egg that splits

Question 4

Faternal twins are also known as:

Answer 4

dizygotic

2 eggs and 2 sperm

Question 5

Majority of twins are dizygotic or monozygotic?

Answer 5

dizygotic

Question 6

If you have splitting on day 1-3 before chorion is completed what type of zygosity do you get?

a. dichorionic diamniotic
b. monochorionic diamniotic
c. monochorionic monoamniotic
d. conjoined twins

Answer 6

a. dichorionic diamniotic

Question 7

If you have splitting on days 4-8 after chorion, but before amnion what type of zygosity do you get?

a. dichorionic diamniotic
b. monochorionic diamniotic
c. monochorionic monoamniotic
d. conjoined twins

Answer 7

b. monochorionic diamniotic

Question 8

If you have splitting on days 8-13, after both chorion and amnion split what type of zygosity do you get?

a. dichorionic diamniotic
b. monochorionic diamniotic
c. monochorionic monoamniotic
d. conjoined twins

Answer 8

c. monochorionic monoamniotic

Question 9

Determination of chorionicity and amnionicity is only possible with this imaging study.

Answer 9

ultrasound

Question 10

What is the recommended mode of delivery for cephalic-cephalic twins presentation?

Answer 10

trial of vaginal delivery is preferred

Question 11

Average gestation for triplets = ______ weeks

Answer 11

33-35 weeks