Penny - Ch 31 Multiple Gestations

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The outer membrane surrounding the fetus is referred to as: A. Placenta B. Chorion C. Amnion D. Yolk sac

B. Chorion

Twins whose bodies are connected at some point are said to be: A. Fraternal B. Conjoined C. Identical D. Stuck

B. Conjoined

Twins that result from fertilization of two separate ova are called: A. Diamniotic B. Dizygotic C. Monozygotic D. Monochorionic

B. Dizygotic

Fraternal twins result from: A. Monozygotic twinning B. Dizygotic twinning C. Heterotopic pregnancies D. Monochorionic pregnancies

B. Dizygotic twinning

Advanced maternal age is considered: A. >25 years of age B. >30 years of age C. >35 years of age D. >40 years of age

C. >35 years of age

Acardiac twinning results from: A. Poor maternal nutrition B. Dizygotic gestations C. Abnormal links among the placental D. Twin embolization syndrome

C. Abnormal links among the placental

The inner membrane surrounding the fetus is referred to as: A. Placenta B. Chorion C. Amnion D. Yolk Sac

C. Amnion

Which terms relates the number of amniotic sacs: A. Chorionicity B. Placentation C. Amnionicity D. Both A and B

C. Amnionicity

Twins having two placentas and two amniotic sacs are referred to as: A. Monochorionic diamniotic B. Biamniotic dichorionic C. Dichorionic diamniotic D. Dichorionic biamniotic

C. Dichorionic diamniotic

The sonographic examination of twins reveals a triangular extension of the placenta at the base of the membrane. This finding is indicative of: A. Monochorionic monoamniotic twins B. monochorionic diamniotic twins C. Dichorionic diamniotic twins D. Monochorionic biamniotic twins

C. Dichorionic diamniotic twins

Which of the following can occur as a result of dizygotic twinning: A. Monochorionic diamniotic twins B. Monochorionic monoamniotic twins C. Dichorionic diamniotic twins D. All of the above

C. Dichorionic diamniotic twins

Ovulation induction drugs not only increase the likelihood multiple gestations, but also increase the likelihood of: A. Maternal diabetes B. Ovarian prolapse C. Heterotopic pregnancies D. Choriocarcinoma

C. Heterotopic pregnancies

Factors that increase the likelihood of having multiple gestations include all of the following except: A. Advanced maternal age B. Ovulation induction drugs C. Poor nutritional state D. Maternal predisposition to twins

C. Poor nutritional state

Which of the following can occur as a result of monozygotic twinning: A. Monochorionic diamniotic twins B. Monochorionic monoamniotic twins C. Dichorionic diamniotic twins D. All of the above

D. All of the above

Which term relates to the number of placentas: A. Chorionicity B. Placentation C. Amnionicity D. Both A and B

D. Both A and B

The term that indicates the presence of two separate amniotic sacs is: A. Dichorionic B. Bichorionic C. Monoamniotic D. Diamniotic

D. Diamniotic

The parasitic twin in acardiac twinning is also referred to as the "pump twin" A. True B. False

B. False

All of the following complications are associated with multiple gestations except: A. Preterm delivery B. High birth weight C. Maternal anemia D. Maternal preeclampsia

B. High birth weight

Which form of monozygotic twinning is the lease common: A. Monochorionic diamniotic B. Monochorionic monoamniotic C. Dichorionic diamniotic D. Dichorionic biamniotic

B. Monochorionic monoamniotic

The twin that will appear larger in twin-twin transfusion syndrome is the: A. Donor B. Recipient C. Both will be the same D. Both will be demised

B. Recipient

The demise of a twin during the second or third trimester can lead to: A. Twin-twin transfusion syndrome B. Twin embolization syndrome C. Twin peak syndrome D. Conjoined twins

B. Twin embolization syndrome

Twins having two placentas and one amniotic sac are referred to as: A. Monochorionic diamniotic B. Monoamniotic dichorionic C. Dichorionic monoamniotic D. This does not occur

D. This does not occur

Typically the first sonographic manifestation of twin-twin transfusion syndrome is: A. Oligohydramnios B. Polyhydramnios C. Dichorionic twinning D. Discordant fetal growth

D. Discordant fetal growth

Twins having one placenta and one amniotic sac are referred to as: A. Dichorionic monoamniotic B. Dichorionic diamniotic C. Monochorionic diamnotic D. Monochorionic monoamniotic

D. Monochorionic monoamniotic

The term that indicates the presence of two separate placentas: A. Dichorionic B. Biamniotic C. Monoamniotic D. Diamniotic

A. Dichorionic

The most common form of monozygotic twins is: A. Monochorionic diamniotic B. Dichorionic diamniotic C. Monochorionic monoamniotic D. None of the above

A. Monochorionic diamniotic

Twins that have the threat of being conjoined are: A. Monochorionic, monoamniotic B. Monochorionic, diamniotic C. Dizygotic D. Dichorionic Diamniotic

A. Monochorionic, monoamniotic

Identical twins result from: A. Monozygotic twinning B. Dizygotic twinning C. Heterotopic pregnancies D. Monochorionic pregnancies

A. Monozygotic twinning

Conjoined twins that are attached at the abdomen are referred to as: A. Omphalopagus B. Thoracopagus C. Ileopagus D. Craniopagus

A. Omphalopagus

The shunting of blood from one twin to the is termed: A. Twin-twin transfusion syndrome B. Twin embolization syndrome C. Twin peak sign D. Conjoined twins

A. Twin-twin transfusion syndrome


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