Multiple Gestation ob29-ob30.

Multiple Pregnancy.

***) The following about twins pregnancy are true, except:

Dizygotic are more common than monozygotic

Dizygotic incidence increases with maternal age

In monozygotic twins a split at the 2 cells stage result in two placentas

All twins are at risk of growth retardation

Polyhydramnios is commoner in dizygotic than in monozygotic twins

Answer: C* In monozygotic twins a split at the 2 cells stage result in two placentas

***) Multiple pregnancy predisposes to the following, except:

Placenta previa

Diabetes mellitus

Acute pyelonephritis

Placental insufficiency

Mal presentation

Answer: C* Acute pyelonephritis

***) All of the following are possible complications of multiple pregnancy, except:

Abnormal presentation

Dysfunctional labor

Umbilical cord prolapse

Cephalo-pelvic disproportion

Postpartum hemorrhage

Answer: B* Dysfunctional labor

***) In multiple pregnancy all of the following are possible risk, except:

PET (Pre-eclampsia toxemia)

Preterm labor

Oligohydramnios

Anemia

Ante partum hemorrhage

Answer: C* Oligohydramnios

***) Twin pregnancy shows an increase in the following complications, except:

Accidental hemorrhage

Pre-eclamptic toxemia (PET)

Polyhydramnios

Post-partum hemorrhage

Polycythemia

Answer: E* Polycythemia

***) Compared with single pregnancies, multiple pregnancies have a higher rate of the following except:

Abortion

Abnormal presentation

Prolapsed cord

Lung maturity

Preterm delivery

Answer: D* Lung maturity

***) Multiple pregnancy is usually associated with increased incidence in all the following except:

Ante partum hemorrhage

Anemia

Toxemia of pregnancy

Premature labor

Monilial genital infection

Answer: E* Monilial genital infection

***) The incidence of dizygotic twins is influenced by all of the following, except:

Race

Maternal age

Parity

Paternal age

Heredity

Answer: D* Paternal age

***) In uniovular twins, all the following are true except:

The first fetus commonly presents by the breech

Anemia is common

There is only one placenta

Polyhydramnios is frequently present

Pregnancy induced hypertension is common

Answer: A* The first fetus commonly presents by the breech

***) Regarding monozygotic twins, all the following are true except:

They are always identical

They have only one placenta

They make up 1/3 of all twin pregnancies

They are usually separated from one another by amnion and chorion

They are more common if there is family history

Answer: D* They are usually separated from one another by amnion and chorion

Delivery in Multiple Pregnancy.

***) In twin delivery all are correct statements, except:

The 2^nd twin is at greater risk than the 1^st

Labor usually occurs before term

The commonest presentation is verte and vertex

Post partum hemorrhage is rare

Labor is not prolonged

Answer: D* Post partum hemorrhage is rare

***) In twin pregnancy the second twin has higher perinatal mortality because of all of the following, except:

High incidence of intrauterine anoxia

High incidence of mal presentation

High incidence of abruptio placenta

More surgical intervention

The second twin is heavier

Answer: E* The second twin is heavier