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 2nd twin is at greater risk than the 1st
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
Growth Discrepancies OB30-OB33.
Intrauterine Growth Restriction IUGR.
***) All of the following maternal factors are associated with IUGR, except:
Poor nutrition with anemia
Heavy smoking
Toxemia
Gestational diabetes
Alcohol consumption
Answer: D* Gestational diabetes
Macrosomia.
***) With fetal macrosomia all of the following complications are increased, except:
Fetal asphyxia
Brachial plexus injury
Post partum hemorrhage
Cord prolapse
Neonatal hypoglycemia
Answer: D* Cord prolapse
Polyhydramnios.
***) All of the following may cause polyhydramnios, except:
Diabetes mellitus
Multiple pregnancy
Anencephalic fetus
Fetal renal atresia
Fetal esophageal atresia
Answer: D* Fetal renal atresia
***) Polyhydramnios could be associated with all of the following, except:
Renal agenesis
Esophageal atresia
Anencephaly
Duodenal atresia
Illeal atresia
Answer: A* Renal agenesis
Oligohydramnios.
***) All of the following anomalies are associated with severe maternal oligohydramnios, except:
Potter's syndrome
Dysplastic kidneys
Pulmonary hypoplasia
Musculoskeletal abnormalities
Gastrointestinal tract obstructions
Answer: E* Gastrointestinal tract obstructions
***) All of the following are associated with oligohydramnios, except:
Renal agenesis
Esophageal atresia
Pulmonary hypoplasia
Urethral atresia
Amnion nodosum
Answer: B* Esophageal atresia