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
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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